A customer may request a refund before the start of the special event bingo session. Bingo licensees must:

(1) Require the person requesting the refund to sign the back of the ticket; and

(2) Refund the entire purchase price of the ticket to the customer; and

(3) Make all refunds by check payable to the customer; and

(4) Record the entry guarantee ticket number on the check; and

(5) Mail the check to the customer no later than thirty days following the event; and

(6) Retain all refunded tickets as a part of the records for the event.