Air fryer return

Hi! So I got an air fryer from Asda back in October, I bought it online and collected in store. Unfortunately it has now stopped working, but it has a 2 year warranty so I was going to return it and see if I could get a replacement or refund. The problem is that I cannot find a receipt or proof of purchase anywhere. The payment is recorded in my banking app, can this be used as proof of purchase??? Thanks!