Bad customer service due to *****

I'm very disappointed in MTN.....If been a customer for years with no problem - 3 to 4 months ago there was a ***** on my contract - it took them so long to sort it out with no communication from there side - every time i went to an MTN shop for updates -now i assume it's sorted from their side, after i went on the MTN app - now they still suspend my account, cant make any calls etc. before i pay a certain amount - mail was send to customer service they say it will take 24 hours for them to replay we are almost on 48 hours with no reply from them and my network suspended - i need my phone for work related and personal issues.