Worst Service Ever

MTN is fast becoming the worst network. My number was sim swapped with out my permission! MTN has taken 6 weeks so far to resolve this issue and still nothing has happened. I have been trying for 3 weeks to get mtn just to call me back regarding this issue. Every time i eventually get through to MTN, either their system is down, or the person needs to speak to their supervisor (promising to phone me back) and they never come back to me. They told me i must just keep phoning every other day to see if the problem has been fixed. STILL NOTHING!!!! Now when i try phone customer care, their lines are so bad that before i can even give them the reference number, the line drops or i have the person on the other side saying hello hello hello the whole time🤬🤬🤬🤬🤬🤬🤬🤬🤬🤬🤬. #MTNGoodStuff#MTN#MTNSummer. I went into a branch 4 times only to eventually be told that they cant help me and i need to only deal with customer care over the phone. MTN South Africa how can you treat a client like this? I have emailed customer care with no result either. What must a person do to just get SERVICE!!??!!??!! This is my business number! I am losing clients.