Question 1

Is linking a foreign card enough?

Accepted Answer

No. Linking only proves setup. A small real transaction is the clearest way to confirm the full approval path works abroad.

Question 2

Why is my linked Alipay card not working?

Accepted Answer

The failure can occur at bank authorization, app risk control, merchant acceptance or the verification channel. The diagnostic separates those stages before recommending a retry.

Question 3

Will my travel eSIM receive bank verification messages?

Accepted Answer

Often no. Many travel eSIMs are data-only. Keep your original number or bank app approvals available.

Question 4

Why carry RMB cash if I have Alipay?

Accepted Answer

Cash is a recovery path when a phone, app, card or network problem blocks digital payment.