Awful service MTN has no accountability

I’m quite disappointed or rather frustrated by MTN. I have done an upgrade on the 28th of November helped by Samuel , and when I call MTN now they don’t know anyone by that name 🙄. I I received my device on the 7th of December it took long due to them not having stock . I understood . After receiving my device I was supposed to received my pro-rata data plus the start up data of 20gig start up data. Which I didnmt receive. I have been calling MTN and I’ve been to the store where I’ve spent over an hour waiting for a consultant to do a follow up on this. They couldn't help me , they said they’ve logged a request for me it will take 48hours upto this day nothing is happening. The consultant the at the store they have no sense of emergency they just didn’t care. I’ve called the call center I’m being transferred from piller to post no one is willing to help I call each and everyday they keep on saying your query is escalated . Still the start up data is not loaded . I can’t find assistance anywhere , I’ve asked for the manager the consultant by the name of Karabo told me I can’t speak to any manager unless if the manager is going to give me a call back . It is quite frustrating as a customer because I’m not getting any help .