Charlatans

Bought a pair of slops and shoes but they weren’t a good fit - in fact the slops (surfers) are the hardest least comfortable slops I’ve ever worn. On returning them they refused to refund me and said that as they were sold for a discount they would not refund me. Instead they issued a gift card. Mom even sure of this is legal but they’ve even put an expiry date on the gift card. Their products are awful - where on earth did they get a reputation for making superior products. They’re in fact the opposite of this. Their selection is so small and the quality so disappointing that there’s nothing of theirs I want and will never purchase from them again. So I simply lose my money - how ethical is this? Even if it is a legal loophole that they have in fine print saying no refunds this shows mal fides in their approach to selling their products.