Bad treatment that I received at frontline

Hi today I went to frontline to do my shopping, and I got to the till I swiped my card then got the notification that money went out but at the store they told .me due to network they didn't receive anything. Then I asked the lady who was helping me what's the way forward and she called the supervisor, the supervisor said the money is floating so for me to get what I was buying I need to pay cash and when ever my money reflect they will refund. They treated me bad as if I don't have plans for my money now o have to wait for then to see if my money reflect or not