The proof of payment must indicate what was bought, how much it cost, and how it was paid for.
This can be in the form of an itemized register receipt, stamped bill, or paid statement. Cancelled checks, credit card bills, and bank statements can also be used, but they must show detail relating to the item purchased.
We do not accept invoices, order / pick up confirmations, or shipping statements with no proof of payment. It is okay for you to use a gift card or gift certificate as the payment method, as long as the receipt indicates the payment method.