tammi
A missing plan does not by itself prove that your line is ineligible. First check the exact plan name, selected line and Tammi version. If you already attempted registration, review the history and confirmation SMS before retrying.
Which plan are you looking for?
5GTammi6H, 5GTammi10, 5GTammi25 and 5GTammi60 are four distinct short-term plans. Search for the full name rather than just “5GTAMMI”.
The launch announcement describes the four short-term plans for prepaid and postpaid lines nationwide. Do not use second-hand conditions for another plan to conclude that your line is excluded.
If the plan is missing
- Check the line selected in Tammi, especially if you manage several numbers.
- Update the app through an official source, then review the plan and offer sections available to you.
- Match the name and cycle to the plan’s information page. A similar code does not guarantee the same benefits.
- If it is still missing, ask Viettel support about the exact code and line. Keep the reply or eligibility message before choosing an alternative.
If you registered but cannot use the allowance
Review transaction history, notifications and the confirmation SMS. Pressing a button or opening a registration page does not mean a plan has activated.
Read the actual status: pending, failed or successful. If an error concerns the account or an existing plan, address that specific message with the carrier; do not repeatedly register just because data has not appeared.
If the plan is active but the connection is slow, check remaining data, coverage and connectivity. A speed test records the experience at that moment; it does not verify a purchase or entitlement.
When you need an alternative
Compare four things: budget, required days, general data per day and app-specific data. Then review the alternative plan’s eligibility and renewal rules.
For example, a monthly plan with a small daily allowance may not cover a short trip involving large document downloads, even if its average daily cost is lower. Choose around the task, not just the total GB.
Tammi.cloud’s mobile catalogue links to sources for checking terms. Purchases happen on the carrier’s channels; this site does not activate service or guarantee eligibility for every line.
Frequently asked questions
Does a missing plan mean my line is blocked?
Not on that evidence alone. Check the exact plan, account and carrier message.
Should I immediately switch to a similarly priced plan?
Only after comparing general data, cycle, supported apps and registration conditions. The same price does not mean the same fit.
Can a speed test tell whether the plan activated?
No. Check the in-app service status or carrier confirmation for activation.