Notice under the Act on Specified Commercial Transactions
Effective date:
HD TELECOM / Vietnam Bussan Co., Ltd.
- Seller
Vietnam Bussan Co., Ltd.
- Service Operated
HD TELECOM
- Representative or Person Responsible for Mail-Order Sales
Duong Anh Duc, Representative Director
- Address
Century Bldg. 2F, 1-16-18 Hyakunincho, Shinjuku-ku, Tokyo 169-0073, Japan
- Phone
03-6789-8553 (hours: 10:00–19:00 Japan time; closed Wednesdays and Sundays)
- Website
- Telecommunications Business Notification No.
A-06-22505
- Prices of Goods and Services
For contracts whose order date (Japan time) is on or after September 30, 2026, the monthly charge of monthly plans (monthly data SIMs, monthly eSIMs and pocket WiFi) and the plan price of the 12-month prepaid SIM are shown excluding tax, and consumption tax (10%) is added to the amount you pay. Each product and price plan page and the application screen show the tax-included amount alongside the tax-excluded price, and the final confirmation screen shows the total, tax included. The administration fee, the purchase price of the pocket WiFi device, the SIM/eSIM reissue fee and the cancellation fee are fixed amounts shown with tax included. The prices of contracts ordered before September 30, 2026 remain as before, at the tax-included prices.
For monthly plans (monthly data SIMs, monthly eSIMs and pocket WiFi), the first monthly charge is the pro rata amount from the order date (Japan time) to the last day of that month (monthly charge × the number of days left in the month, including the order date ÷ the number of days in the month; amounts under ¥1 are rounded down; calculated per line or device). If the order date is on or after the 25th, the full monthly charge for the following month is added. The first monthly charge covers the period from the order date to the last day of that month (or to the last day of the following month if the order date is on or after the 25th). From the second month onwards (that is, from the month after the period covered by the first monthly charge), you pay the monthly charge one month at a time. For contracts whose order date is on or after September 30, 2026, consumption tax (10%) is calculated on the pro rata amount (or, if the order date is on or after the 25th, on the pro rata amount plus the full monthly charge for the following month; both tax-excluded), per line or device, with amounts under ¥1 rounded down, and the amount with tax added is the first monthly charge (tax included). The monthly charge from the second month onwards is also the tax-excluded monthly charge plus consumption tax (10%).
- Charges Other Than the Price of Goods and Services
Shipping: free (within Japan)
Administration fee: ¥3,300 (tax included; ¥3,000 excl. tax) per SIM, eSIM or pocket WiFi line when you sign up. It is not charged for the 12-month prepaid SIM. SIM/eSIM reissue fee: ¥3,300 (tax included).
Other: bank transfer fees are paid by you. Cash on delivery fee: free (at present). Pocket WiFi device: ¥9,900 (tax included) if you buy it, or a ¥5,000 deposit (a refundable deposit, so no consumption tax applies; refunded after the device is returned, less any deductions explained in the rental device return rules) if you rent it.
- Payment Methods
Bank transfer, or cash on delivery (paid when your SIM card or pocket WiFi device is delivered).
- Payment Timing
Bank transfer: within 3 days of the order date (we ship your order or send your eSIM after confirming payment). Cash on delivery: when you receive the goods. Monthly charges from the second month onwards: please follow the payment notice we email you on or after the 25th of each month, and pay the following month's charge by bank transfer by the last day of the current month. When you make the transfer, please enter your order number before your name in the sender name field. If a payment notice is sent late, the due date is 10 days after the day it is sent. A notice is sent late if fewer than 4 days, counting the day it is sent, remain until the normal due date (the last day of the month before the month being billed), or if it is sent after the normal due date has passed.
Cancellation fee: once we have accepted your request to cancel, we will bill you by email. Please pay by bank transfer by the contract end date. However, if fewer than 10 days, counting the billing date, remain from the billing date to the contract end date (including where we bill you after the contract end date has passed), please pay no later than 10 days after the billing date.
- Delivery of Goods and Start of Service
eSIM: if we confirm your payment during business hours (10:00–19:00, excluding Wednesdays and Sundays), we normally email you the QR code and setup information the same day. Payments made outside business hours or on days we are closed are handled on the next business day.
SIM cards and pocket WiFi devices: we ship after confirming your payment (for cash on delivery, after confirming your order), and delivery within Japan normally takes 1–3 business days.
Telecommunications services: provided once activation has been completed.
- Validity Period of Applications
If an offer can be applied for only for a limited time, this is shown on the relevant campaign or product page. Unless stated otherwise, no validity period is set.
- Returns and Cancellations
(1) Cancellation before shipping (for eSIM, before the QR code is issued): we refund the full amount.
(2) After shipping (for eSIM, after the QR code is issued), we cannot accept cancellations, returns or refunds for personal reasons.
(3) Defects on arrival or delivery errors attributable to us: if you contact us within 7 days of receiving the goods, we will exchange them or give you a refund (we pay the return postage).
(4) Pocket WiFi device (purchase): a device you buy becomes your property and does not need to be returned. We cannot accept returns for personal reasons (except for defects on arrival).
- Cancellation Conditions for Ongoing Contracts
Minimum term: for monthly data SIMs, monthly eSIMs and pocket WiFi, 6 months under contracts whose order date (Japan time) is on or after October 5, 2026, and 12 months under contracts whose order date is on or after September 29, 2026 and before October 5, 2026 (2 months for the Rakuten network 300GB plan, whether SIM or eSIM). The month containing the order date counts as the first month (where the Supplementary Provisions of the Terms of Service set a different billing start date, the month containing that date counts as the first month). Cancellation fee if you cancel within the minimum term (that is, if the contract end date falls before the last day of the final month of the minimum term): ¥3,300 including tax (¥3,000 excluding tax) for contracts whose order date is on or after October 5, 2026, and ¥9,500 including tax for contracts whose order date is on or after September 29, 2026 and before October 5, 2026 (in each case per line or device; no cancellation fee for the Rakuten network 300GB plan). Contracts whose order date is before September 29, 2026 have no minimum term and no cancellation fee (Supplementary Provisions of the Terms of Service). The minimum term (12 months) and the cancellation fee (¥9,500) of contracts whose order date is on or after September 29, 2026 and before October 5, 2026 are not changed by the revision of October 5, 2026. Even if you cancel within the minimum term, we will not charge any penalty or other damages, and the only amount you will be asked to pay is the cancellation fee stated above (¥3,300 [tax included; ¥3,000 excl. tax] for contracts whose order date is on or after October 5, 2026, or ¥9,500 [tax included] for contracts whose order date is on or after September 29, 2026 and before October 5, 2026). How to cancel: contact us by email (support@hdtelecom.jp) or phone (03-6789-8553, hours: 10:00–19:00 Japan time; closed Wednesdays and Sundays). If you contact us by the 15th of the month, your contract ends on the last day of that month. If you contact us on or after the 16th, your contract ends on the last day of the following month. The date of your notice is the date (Japan time) on which we receive your email or take your phone call. The monthly charge for the month in which the contract ends is a full month's charge and is not calculated pro rata (if that month falls within the period covered by the first monthly charge (other than the Transition Month defined in the Supplementary Provisions of the Terms of Service), you pay no further monthly charge for that month beyond the first monthly charge; if that month is the Transition Month defined in the Supplementary Provisions of the Terms of Service, the monthly charge for that month is governed by those Supplementary Provisions; only if, with our agreement, the contract end date falls partway through a month is the monthly charge for that month calculated pro rata, and if you have already paid it, we will refund the difference by bank transfer). For contracts whose order date is on or after September 30, 2026, this pro rata calculation is made on the tax-excluded monthly charge, and the monthly charge for that month (tax included) is the pro rata amount plus consumption tax (10%; amounts under ¥1 are rounded down). You do not need to return the SIM card when you cancel. After the minimum period, the contract continues automatically month by month until you ask to cancel.
12-month prepaid SIM: there is no minimum term and no cancellation fee. If you cancel partway through the usage period, we do not refund the charge for the unused period. It does not renew automatically when the usage period ends.
- Return of Rental Devices
Return deadline: the device must reach us within 10 days of the contract end date. Return method: by post (you pay the return postage). Please return the device itself together with the accessories we sent with it (charging cable, AC adapter if included, box and anything else packed with it), in the condition in which you received it. Before shipping, we photograph and record the condition of the device, and we use this record as the basis for checking it when it comes back. If the device is damaged or an accessory is missing when you receive it, please tell us promptly; in that case the damage will not be deducted from your deposit. After we receive the device and check that it works, we refund the ¥5,000 deposit by bank transfer within 14 days. The refund is ¥5,000 minus the following: (1) any unpaid charges; (2) if the returned device is damaged or an accessory is missing, the actual loss (the actual cost of repair or replacement, up to the amount of the deposit). Examples: a cracked, chipped or broken screen or body; a device that does not turn on or does not work properly; water damage; unauthorized disassembly or modification; a missing charging cable, AC adapter, box or other accessory; (3) the actual bank transfer fee for the refund (paid by you). If the device is not returned by the deadline or is lost, the cost of replacing it is more than the deposit, so we keep the whole deposit to cover the loss and do not refund it.
- Communication Quality
Best-effort service. Maximum speeds are not a guarantee of actual speeds. Speeds vary depending on the network environment, congestion, your device and other conditions.
- Operating Environment and Compatible Devices
Shown on each product and service page.
- No Resale
Without our prior consent, reselling, commercially reselling, transferring or subletting the services, SIMs/eSIMs, rental devices or similar to a third party, or letting a third party use them in your name, is prohibited.
This translation is for reference only; the Japanese version is the legally binding text.