zhuīzōnghàomǎ
ㄓㄨㄟ ㄗㄨㄥ ㄏㄠˋ ㄇㄚˇ
Simplified 追踪号码
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 追蹤號碼 and it comes back until you know it.