I'm trying to place an order that's over $50. I can't get it to accept the free shipping coupon code. I'm entering it where it says "Coupon Code." I've done this before but still can't figure it out. Help! I called and the store isn't open. I want to get this placed before some of the items are sold out. I did leave a message for someone to call me back. Thanks very much for any hints you can give me.