Say they refunded, but they have not!

Terrible experience trying to get a refund from them, on an order that was never shipped. After months of them trying to sell me beds and so on, instead of just refunding the duvet cover I ordered (as I thought mine was ruined)... I filled in their returns form. Returns for sent to them mid July. Eventually on 25 September I received an email saying the refund has been processed. However, it is now 6 Oct and this refund still doesn't reflect in my account. They are now just ignoring my emails.