1. A receipt insurance credit card payment system for purchase transactions by use of receipt-insured-credit-cards as payment in conjunction with hardware and software for purchase transaction data processing and management, the receipt insurance credit card payment system comprising: an insurance agreement between a receipt insurer and a credit card issuer in connection with a credit card account to provide a receipt-insured-credit-card by which a cardholder of a receipt-insured-credit-card issued by a receipt-insured-credit-card issuer is insured under the insurance agreement against loss of rights related to a receipt for a purchase transaction made with the receipt-insured-credit-card; the receipt-insured-credit-card configured for acceptance as payment by a retailer for a purchase transaction as a charge against a receipt-insured-credit-card; means for transfer of receipt data for purchase transactions by receipt-insured-credit-cards from the retailer to the receipt-insured-credit-card issuer or to the receipt insurer or to the cardholder, the retailer receiving an economic benefit from the issuer of the receipt-insured-credit-card for acceptance of receipt-insured-credit-cards for purchase transactions.