# FactQA · Vietnam · Country report sample

Ho Chi Minh City · OPPO Reno11 · Android 14 · Chrome 128 · Viettel 4G
Sandbox · builds 1.8.0–1.8.2; 2026-09-21 / 09-25 / 09-29

## Key findings
- Prioritize wallet balance refresh after payment return, then retest game entry.
- OTP delays and upload recovery affect the full journey; preserve the failed steps.
- Card results are blocked by access prerequisites, not proven payment-channel failures.

## Local payment records
Each channel has 10 planned independent deposit checks and 10 withdrawal checks. Observation window: 300 s. Completion requires a matching state and sandbox balance / receipt. Timing is the successful withdrawal median from submission to receipt. Not-run attempts are not failures. Test balances do not establish live settlement or payment-brand integration.

### E-wallet · sandbox
Deposit completed: 9 / 10
Withdrawal completed: 10 / 10
Median withdrawal time: 90 s
One return left a stale balance despite a successful payment state.
Location: Wallet state sync
Evidence record: VN-PAY-02 / EV-P01

### Bank transfer · sandbox
Deposit completed: 10 / 10
Withdrawal completed: 9 / 10
Median withdrawal time: 180 s
One withdrawal remained pending beyond the 300 s observation window.
Location: Order state and receipt
Evidence record: VN-PAY-04 / EV-P02

### Payment card · sandbox
Deposit completed: 0 / 10
Withdrawal completed: —
Median withdrawal time: —
Account lacked channel access; payment could not begin. Withdrawal not run.
Location: Account and channel access
Evidence record: VN-PAY-05 / EV-P03

## Build trends
Same device, network, cache policy, account prerequisites and time window. Each build / flow uses 10 separate attempts; successful median timings and game failures are separate. Changes alone do not establish causation.
| Date | Build | First screen (s) | Game ready (s) | Game failures / 10 |
| --- | --- | ---: | ---: | ---: |
| 2026-09-21 | 1.8.0 | 3.8 | 6.4 | 1 |
| 2026-09-25 | 1.8.1 | 3.2 | 5.8 | 1 |
| 2026-09-29 | 1.8.2 | 2.9 | 5.1 | 0 |

## Retest
VN-PAY-02: 3 of 5 attempts on build 1.8.0; no recurrence in 5 attempts on build 1.8.1 in the same environment.

## Evidence files
This sample contains written step and evidence-index records without project screenshot or video files. Project delivery links masked screenshots, continuous recordings, individual outcomes and environment records with matching IDs.