54.15. A chargeback request must be in writing and contain the following information:a) the credit cardholder’s name;
b) the credit card number and expiry date;
c) the merchant’s name;
d) the date the contract was entered into;
e) the amount charged to the credit card account and the sums to be refunded by the merchant;
f) a description of the goods or services that are the object of the contract and for which chargeback is requested;
g) the reason for cancelling the contract; and
h) the date of cancellation and the means used to send the cancellation notice.