Non refund of an item bought from voda bucks store

I ordered a pair of shoes from the voda bucks store online and paid for it using my card. I was then sent a link to select the size, however my size was out of stock. This was on the 27th of August. The next day I called an requested a refund and my card details were captured. I lost the card and had to replace it. I called in for the next consecutive 3 weeks to check on the progress but each time I was requested to provide my card details which I had already updated when calling. 13th of October I called again and I was sent a refund request form to fill in. I filled it in and emailed it back. To this day I have not received any monies refunded to me. Highly disappointed at their service. I wouldn't recommend anyone to use the vodabucks store, highly unreliable