1. Open the China Bank APP.
2. Find the "My" option on the home page or the bottom navigation bar.
3. After entering the "My" page, look for "Activity Area" or similar options.
4. In the activity area, look for "more" or similar options.
5. In the "More" option, look for "Pay Fixed Allowance" or something similar.
6. On the page of "Pay Tax Reduction", you should be able to find "Get it now" or a similar button, and click it to get the 5 yuan voucher.