Bad service

I am not one that easily complains about bad service, but I am beyond disappointed in the service (or lack thereof) that I have received from Cell C. On Wednesday last week my cell phone was ******. I am struggling to do a SIM swap with Cell C. I really feel like I am being made to feel like a ********. You need to apparently provide 5 recently dialed numbers and go into detail about when and how and how much you recharged. Firstly, my phone is gone, so please tell me how I am supposedly going to tell you who I dialed last, especially when most people not only use wi-fi, but also mostly WhatsApp for calls. When you do manage to remember possible numbers, these apparently do not show on the Cell C system, so you fail the security test. Phoning Customer Care is also useless as I had to remember my recharge history and there too failed the security test. I now cannot access my Gmail and other apps as they are registered to my old number. All my contacts and photos must now just be lost as I try and get back what is mine. Really disgusted and absolutely shell-shocked at how I have been treated by Cell C Parow Centre and Customer Care. Absolutely no assistance when you need to recover YOUR possession in terms of your number. No regard for a customer going through a traumatic experience. Saw at least 4 other customers getting the same treatment who also wanted to do a SIM swap. Cell C are going to lose alot of customers like this. I am highly upset.