Shocking Service

I have been with MTN for 30-years. I have been trying since April 2023 to upgrade one of my numbers. I have logged calls & been told I need to have my credit limit increased. Then I have been transferred to the department that deals with it, got a reference number, received an sms to say completed. I then call in only to find nothings been done. Then the process starts again like Groundhog Day. 2,5 months later and still no resolution & no explanation if application is declined or anything. Shocking service to say the least. Only solution is to cancel contract & go to Vodacom.