employment certificate
XX (name), ID number: XXX, joined the XX department of our unit on XX, XX, and took the post of XX. Work in XX. The annual income before tax is XX yuan.
This certificate is only used for handling XX bank credit cards, and is not used for other purposes.
This is to certify that.
XXX unit (with official seal)
XX year XX month XX day
Replace "XX" with the number to be filled in, and then find a human to stamp it. The above is a draft, the format needs to be adjusted by yourself, as long as it looks comfortable.