No service or updated systems

I paid my Jet account a few days late this month, paid on 9 August 2015 at CNA North Cape Mall, an amount of R368.33 by card. (Ref nr: ******4949 10:51:29.) The lady at the counter told me that there have been people who said that when they pay there the system does not update like it should but i thought that by Wednesday it should have cleared. When I tried to buy on my account on Wednesday, I was told that I am overdue with the amount that I paid. I phoned the customer care line, gave the reference number on my receipt and was told that it should be sorted by Friday. I tried to buy on my account today and still I was not able to. I am starting to work on Monday and need clothes for work but thanks to slow systems I don't know what to do! This is extremely poor service and I am very disappointed and inconvenienced. I have asked I could switch over to debit order but that again is a process. I can't pay by EFT because the account number is too long to use as reference and when I was almost handed over after payment my account on time, was told that they do not use their emails so they did not receive my proof of payment. POOR POOR POOR service!