(2) the retail dealer shall not be responsible for any of the costs associated with the rebate, allowance, concession, or benefit received by the motor fuel purchaser except for any interchange fees and transaction fees associated with the use of a credit card or debit card by a customer for the purchase of motor fuels. As used in this subsection, "rewards card" means a card or certificate distributed by the issuer to a consumer pursuant to an awards, loyalty, rewards, or promotional program, or used to benefit frequent shoppers or to collect data on purchasing habits.