Pathetic Service on new contracts and staff

I have app**** for a new contract last week Tuesday, 4th May 2021. I spoke to Nadine Emanuel - Reference number MV***4. I have made over 30 phones call to your call centre on ***, my phone bill has gone up drastically as I am not an MTN customer. I have sent e-mails to *** and to-date no one has responded to me. I have tried contacting the Line Manager with no success. Every time I call the call centre I get cut-off by the most of the staff members. Today I was holding on waiting to speak to the Team Lead for over an hour. What type of service is this, I am disgusted in the service I have received.