Cancel Viettel: Close Your Vietnamese Line and Data Package the Official Way
Independent guide — no official affiliation with the platforms mentioned.
Short answer
In Viettel you can stop an auto-renewing data package instantly via the My Viettel app or the *098 USSD code; closing the number itself (hủy số) requires visiting a Viettel store with CCCD ID. Prepaid lines have no contract — the line drops 60 days after the balance runs out.
Official source
vietteltelecom.vn
Vietnam resmî Viettel portalı
01 — Step-by-step fix
Step-by-step fix
STEP 01
Sign in to My Viettel
Open the My Viettel app and verify with the OTP sent to your number. Open the 'Dịch vụ' (Services) tab on the home screen.
STEP 02
Cancel the package in the app
Find the active package and tap 'Hủy' (Cancel), then confirm. Auto-renewal stops immediately — the package keeps running until the end of its period.
STEP 03
Quick cancel via USSD
Open the dialer and dial *098; choose the package cancellation (hủy gói) option in the menu. A confirmation SMS arrives; the command is free.
STEP 04
Visit a store to close the number
Go to a Viettel store (Showroom) with the owner's CCCD ID and request 'hủy số'. You receive a written request record — keep it.
STEP 05
If you want to keep the number
To avoid losing the number, make a minimal maintenance top-up, or start an MNP request with the new operator: SMS TC <number> to 188; when the port completes the Viettel line closes.
Tips
- To kill auto-renewal completely, also toggle off My Viettel > Cài đặt > 'Tự động gia hạn'.
- Foreigners can use a passport for store requests; lines registered with a passport number process without issues.
- Multi-SIM subscribers can close the secondary line in the app via 'Hủy sim' — no store visit needed.
02 — Frequently asked questions
Frequently asked questions
Does cancelling a data package cost anything?
No — package cancellation via My Viettel and *098 is free. Remaining data stays usable until the end of the period.
When does the line drop automatically?
On a prepaid line, after 60 days without a recharge the number is closed irreversibly; a recharge during that window keeps the line alive.
Is the postpaid (trả sau) process different?
Yes — trả sau lines have a contract. Call 1234 customer service or visit a store with ID; the remaining period bill and deposit refund are processed.
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Links in this guide point to official platform pages. Steps may change with platform updates; check the page date.
03 — Related guides