“Purchase price” means all funds paid by or on behalf of a purchaser to a seller of a commodity contract or a commodity option (or to another person at the request or direction of a seller), including, but not limited to, the sale price of a commodity, an administrative charge or fee, assessment, deposit, dues, handling charge or fee, holding charge or fee, membership charge or fee, reservation charge or fee, or any charge, fee, or other payment made or paid in connection with the sale of a commodity contract or a commodity option.