A Credit Manager - with no authority

I do have a Edgars account for nearly 9 years.....Every now and then they send me a request if I want to up y credit limit and then for myself I say no ..... then you shop to much. If I buy at the till I need to sign a slip that I do not want to up my credit limit. Saturday morning I need to buy a cell phone urgently for my son. I had to pay in R2600.00 because of this limit. So I could swipe my card for R2000 and pay in 200 that was in my purse and ask Edgars credit manager if he can only override my account with 400 rand so that I can really get this phone. He told me he do not have any authority to do it. So what is his position worth in the store. If he as a credit manager can not override my balance with 400 rand. <br> <br> Everything could go but his attitude... that was unbelieveable. The girl at the till really try to help me and phone around and they said a credit manager could help me. It is really that I cannot run away. They sit with my address, account and telephone number. So I said to him I am really not going to report this. And he said go, by all means but he do have no authority..... So I wonder why is this position in Edgars stores