Did Covid kill service at MTN?

For many months have contaced MTN as unanswered calls get a message that my number in INVALID. Now MTN's Matilda Dlamini apologised and advised me to phone 132 and it will rain foe seven days and sevend nights. I did: Still the same bad service. No change. Good day Wessel,

Thank you for your email.

We apologize for the delayed response and for any inconvenience incurred.

Kindly be advised that voicemail express is active on your contract, you will have to set it up by dialing 132 and record your greeting. Kind Regards, Matilda Dlamini MTN SA Reference Number: ***