Poor Service from MTN

They disconnected me 2 days ago. I have been trying to get hold of them since. They say they are still working, and as I was disconnected and received an sms to tell me so, I have to believe that's true. Except that for 2 days, I have not been able to get through to anyone, they have not answered my calls, emails, or tweets. As I cannot go into a shop to talk to someone, I find this very frustrating. I realize we are in lockdown but if they can do one part of their job, they should be able to respond with me to sort out my issue. I am also stuck at home, trying to communicate with my clients, so I need my phone desperately