This is a repeated transaction. Don't just have invoices. Because there is a complete record in the bank, when and how much money you spent, how many times you swiped your card, and the amount is recorded. And it will be fully displayed on your current bill. You can ask the bank to fax the records or take the statement to that clothing store.

Finally, because credit card consumption requires signature. You only signed a piece of paper. There is only one clothing store.

These can be used as proof, especially bills. It has the name of the shop on it. How many times have you painted in this shop? You can tell at a glance how much you have brushed. This is a clothing store, and people can't justify themselves.