Damaged goods returned waiting for a refund

Hi there,<br> I am really disappointed that I need to do this as I have bought numerous goods from groupon online and not had a problem. Now one item was faulty which was collected on 29 April, Groupon phoned to confirm receipt of the damanged good and that they have had a few returns on this item so will be refunding me instead of sending a replacement item.<br> Now after 23 emails and trying to contact them telephonically a couple of times I still do not have a refund, that's 4 months - this is not an acceptable turn around time to refund a client for faulty goods.