Staff need a wakeup!!!

Went to do a sim swop yesterday at Cell C in Northgate. Was told I needed a proof of address which I didn't have on me. The sales lady did not offer the info that a bank statement would suffice. I found this out later from another SP, went and got a bank statement and went back to the shop. While I was waiting there, another sales lady was telling a gentleman that the easiest way to do a sim swop was to do it online!! Why was I not given all this information the first time round???? I could have done it online with all the documents at hand but NO........your staff would rather all sit and do nothing to help get the job done!!! I am fed up with the lack of service from Cell C.