I went to debonairs (umhlanga total garage) to buy lunch as I was at work

I went to debonairs (umhlanga total garage) to buy lunch as I was at work. I used their self service machine since I didn't have cash, the machine did not print out my slip and it looked as if I did not pay where as the money was taken from my account. I told one of the tellers and they saw that was no paper and fixed that but my slip still didn't come out. The manager told me to bring my bank statement if the money doesn't reflect back in 48 w/h. I bought my statement, they sent it to their back office and said they can't see the money on their account. Whereas it was showing on the statement.