(e) prescribing the amount of the fees, charges, and royalties payable to the Crown under Part 5 or the method by which they are to be assessed, including different fees, royalties, or charges for different classes of foreign fishing vessels (whether by reference to size, catch, method of fishing, function, or otherwise), and their method of payment; and prescribing the circumstances in which any such fee, charge, or royalty, or any part of any fee, charge, or royalty may be refunded: