Poor service from MTN.

A data only 24 contract was signed up on Sunday the 4th of Aug 2019. I was promised that the sim will be activated within 24 to 48 hours. It is now 75 hours and after numerous telephone calls, I still have no signal. I am with MTN for more than 30 years without any problems, but it seems as if the service delivery is going for the worst. Number involved ***