1. Capture baseline screenshots before you leave home
Take clear screenshots of your wallet app's main screen, your linked card details (mask the middle digits for security), and the profile page that shows your real-name verification status. On Alipay, this means going to "My" → "Account" → "Real-name verification" and capturing the screen. On WeChat Pay, open "Me" → "Pay" → "Wallet" and screenshot the card list page.
2. Rehearse the failure scenario
Make a small payment at a hotel front desk or a convenience store before you need it. When the payment succeeds—fine. When it fails, immediately take a screenshot of the error screen before dismissing it. Then take a second screenshot showing the transaction record (failed) in the app's history. This two-shot pattern covers both the error and the evidence that a transaction was actually attempted.
3. Organize screenshots into a labeled album
Create a folder or album on your phone called "SH Support" and move all payment-related screenshots there. Rename each file with a short note: "alipay_error_riskcontrol_20250315" or "wechat_fail_insufficient_funds". This makes it easy to find the right screenshot when you are in a hurry.
4. Store a copy offline
In Shanghai, you may lose data connectivity in metro tunnels or underground shopping areas. Keep a copy of your support screenshots on the phone's local storage, not just in the cloud. Set up a Google Drive or iCloud sync only as a backup, not the primary copy.