Worst ever service in response to Cell C's error in Blacklisting the wrong phone.

I am a Vodacom client. Cell C Blacklisted my phone in error. After a day at Vodacom, then Cell C, I via Cellucity, was given a report that showed a Cell C client lost their phone and went on to blacklist their device. They managed to swith the very last digit of the IME number and my device was Blacklisted by mistake. Prudence of Cell C Tygervalley refused to accept that Cell C could blacklist my device despite me giving her the report stating as such. The only help she offered was to whatsapp someone senior and said I had to wait for a response. I proceeded to email the pop for my device, detailed what had happened, provided the reportsd ( which gave the persons cell c number, ID etc who blacklisted the device ) and emailed both Vodacom and Cell C customer services and blacklisting departments. Today, 3 days later, still no response from Cell C and Vodacome responded confirming Cell C had Blacklisted my device. I whatsapped this to Prudence ( she refused to give me any email address despite requesting hers and her managers ) and her response was only the person who Blacklisted the device, could Un Blacklist the device, signing off with All the Best. I run my own business and have had no phone, no email, no WhatsApp now for 3 days. I am at a standstill. To make matters worse, Cell C continue to try contact me via the very number they blacklisted. They once got hold of my wife and she advised them the number was blacklisted by them and requested a number that I could contact them on, they refused. I then emailed them again, requesting that they can rather email me but they don't. I have since put my sim in a very old device with literrally only ability to receive calls, so they can now contact me on ***. This is the worst assistance I have ever received and the unwillingness to help resolve is astounding since I provided them with all the necessary information.