Guys this happened to me today. I ordered something on amazon using upi on Samsung pay mini. Due to some reasons I had to cancel the order and later when I tried logging in again to samsung pay for refund it started showing that no upi exists. Then I had to set up upi account again and I lost my original upi address due to this I think now I will lose my money which will come as refund. The worst part is that this has no contact number to contact for problems.