MTN's very bad customer service

MTN is full of ****. I was hijacked on the 1st of this month - had to do a SIM swap. Guess what? This new SIM I have doesn't receive SMSs - so I have been struggling to do banking because all that needs OTP receipts. I have seeked help in Woodmead branch, no help. I went to MTN Midrand, no help. I have called MTN numerous times, they keep on escalating. For three weeks they keep on escalating!!!! This is very disgusting from MTN!!!!