Cell C is pathetic

I went into the Gateway sore on 26 Nov to do a sim upgrade as there were black friday specials running. I was told that an upgrade can only be processed after an amendment of month id done by the head office. The assistant completed the relevant docs and emailed the request to the head office whilst i was in the store. Since the 26th Nov till today 4th Dec, i called the store on numerous occassions regarding the upgrade. Each time i was told that the head office had not yet processed the end of month. I also called customer care and they could not assist as the back office which is supposed to do the amendment of month has not done its job. Tomorrow is 5th Dec when the special ends. So it looks like i will not get it due to no fault of mine. The incompetence of Cell C in admin and processing upgrades is shocking. Makes me wonder if the offer of specials is a big **** whereby the company has no intention of fulfilling special offers advertised.