Disgusting service

I will NEVER recommend Cell C to anybody! They delivered the wrong phone to me when I requested an upgrade and I was told I had to take delivery then send it back...they couldn't just change the info on my account. I did as instructed after spending most of the day being shunted from pillar to post on the phone and then called them the next day to tell them to collect. I think I've spoken to every single department in cell c and I just can't get customer service! Eventually got through to a Bongani who promised me faithfully he'd get the phone collected the next day (which was supposed to be yesterday) and I've tried to contact him to find out what's going on and he just ignores my messages, calls and emails. I have now been instructed to go into a store today and they can assist me there. I'm hoping I can get some joy in-store. There is NO customer care and one hand doesn't know what the other hand is doing. Not to mention the "security questions" that have to be asked every single time they transfer your call! Please, rather go to MTN or Vodacom...Cell C is abysmal!