Disgusting service

I took 2 contracts with MTN in march 2018. From that day I've experienced nothing but headaches with this company. Firstly I was told my other sim was not activated and had to go to a MTN shop to do so. I took time off from work because i bought it for my sister,who was moving to another province,so I had to drop everything and head there,upon arriving I told that there was nothing as such and both simcard we're activated. My second time was when I had a payment dispute,and that's hardly a month of using their services.the agents at the call centre was rude and one of them even told me that,they didn't send me to take the MTN contract so I must just deal with it. I let that one slide aswell. Had a a third payment dispute,I escalated it at the Midrand MTN branch and also through the callcentre. A couple of days after I went back again to the branch and I was told it was resolved,and I asked which one because we had 2 payment disputes,and it only showed that one was resolved,we escalated it again,I also called the call centre again and spoke to the supervisor by the the name Simthembile Ndaba,I forwarded the proof of payment to him and he also advised that he will escalate the matter . It's now a month and I've still heard nothing from MTN,my lines are closed.i can't even contact my little sister whose in another province and as I'm writing this review,I've been put on hold for an hour,because there is "no supervisor"whom I can speak to,to have the matter resolved.i regret taking this contract and this is surely my first and last. Wanted to recommend you to my parents,but because of such bad service,I'll never recommend you guys to anyone.Sic