lars.poulsen

I do not know the english word for it, but when you buy a beer or soda here, you pay a fee for the bottle and when you return the bottle you get the fee back. The returnfee should not be done as a refund but be handled like a coupon or a separate item with a negative pricing. As items can not have negative prices and you can only have one coupon on one reciept none of these solutions are viable (sometimes people come with 30 bottles at once). Is there any way to bypass this?