# Vietnam-only 5sim OpenAI phone test: direct rejects/invalid numbers (2026-05-10)

## Context

BOSS asked to register another Codex/OpenAI OAuth account using Vietnam 5sim SMS only.

Account:

```text
chickliu.efxudmrg@claw.163.com
```

Successful pre-phone stages:

```text
ClawEmail sub-mailbox created
Dashboard comm settings opened: commLevel=2, extReceiveType=1, extSendType=0
CPA OAuth URL generated
OpenAI create-account email/password submitted
OpenAI email verification code received in the sub-mailbox and submitted
Reached https://auth.openai.com/add-phone
```

The OpenAI phone country gate was enforced before buys/submits:

```text
select.value = VN
visible country = 越南 (+84)
```

## Result

Vietnam 5sim `openai` SMS activations were bought and submitted one at a time. OpenAI rejected them before any SMS was received.

Activation ids and classifications:

```text
1006941018  direct unable-to-send reject; canceled
1006941583  电话号码无效 / invalid phone; canceled
1006942314  rejected; canceled
1006942389  rejected; canceled
1006942456  rejected; canceled
1006942527  rejected; canceled
1006942608  rejected; canceled
```

Final state:

```text
OpenAI email verification: passed
OpenAI phone verification: not passed
Current page: auth.openai.com/add-phone
Active 5sim orders: none
CPA callback import: not reached
```

## Lessons

- A Vietnam number can still be rejected as invalid even when the page gate shows `VN` / `越南 (+84)` correctly.
- Treat both messages as immediate-reject classes and cancel the activation promptly:
  - `无法向此电话号码发送验证码`
  - `电话号码无效`
- If BOSS insists on Vietnam-only, expect multiple burned-but-canceled activations before success; if allowed, prefer broad/free-country strategy because a previous success occurred only during wider exploration.
- When clearing a previously invalid phone number, use real keyboard select-all/backspace on the visible tel field before inserting the next number; simple JS `.value=''` can leave React/hidden `phoneNumber` state inconsistent.