MTN Fail again

During a time that it is of the upmost importance for the providers of communication to make sure of uninterrupted services, MTN has failed again! When doing a balance check I have R 331 worth of airtime available, but I can't make any calls. I tried to call the call centre, where they proudly announce their staff is fully operational and working from home during this period, holding on for more than 30 minutes (on both occasions) I to hung my call up. This is truly pathetic service. Don't say you are operational when there is clearly nobody working!!!!