Bought a bra from a local shop at the weekend, and took it back today as it didn't fit me properly. Spent AGES with the assistant trying on about 20 other bras but none of them were right (I do have enormous boobs unfortunately). I said I'd just have to have a refund, after which the shop assistant said "oh we don't do refunds, sorry. Only credit notes". Agh, soooooo annoying! I wouldn't have bought anything from there if I'd known that.
Legally, is this OK?