MTN Contracts

WOW shocking how bad their service really are, after reading all the comments, well i think im done with MTN after having my contract and paying always, and the same number for 9years now, they are just plain stupid, upgraded online on the 7th, told them on the 15th that number does not work due to the phone is broken, also told them that the lady working at MTN in Lephalale used a scissor to cut my sim smaller in 2017 with my upgrade, so now the sim doesn't work in another phone, so I cannot put the sim in another phone. they continued to phone me on that number, after I phoned them daily since the 15th I still get a reply via email as well, that I do not answer my calls, oooeeee really? how stupid can you be, o and I told DSV courier the same story phoned them myself, but apparently they cannot do anything because MTN must change the Number / Contact details on their side... so now what? its been a month and my business phone is down...