Bad service

I bought a bed online on the 13 th of October 2020, I received confirmation and that the bed will be delivered within 21 working days, after the 30th day I called and enquired I was given a reference number and was told that it was escalated, and should receive feedback within 48 hours, I called again and again, my last call I cancelled my order as I was told that they do not have the bed in stock. I was advised that they will refund and the refund will take up to 14 working days. On the 14th I received an email requesting my banking details I have not received any feedback even after I sent numerous emails