3 Weeks to do SIM swop

I phoned for a SIM swop and to order a SIM card to be couriered to my office on 13/14 July. I was advised this was possible and of the courier charges and accepted the conditions. Then I was told someone would contact me regarding delivery within the week. The week came and went. The 2nd as well. When my patience at waiting finally ran out, I contacted customer care, quite friendly, to be told the request for SIM card was put through to the wrong department who then closed the ticket and no-one bothered to follow-up with me. I have to phone in to find this out. In the meantime I remembered a Game opened about 2 months ago in my area and they should stock Cell C sims. So I bought my own and phoned back again, to be told that someone would phone me within 4 hours. The customer care number DID phone, but I'm immediately put on HOLD for 5 minutes to listen to their brain-grinding waiting tune. After which I'm put through to a service desk that NO-ONE is attending. I can hear people and activity but no-one attending the phone. I say hello for about 3 minutes before giving up and phoning back to be on hold then for 25 minutes. .... I don't have enough space left to continue this saga