Account not billed on date and service unavailable

I am an M.T.N customer from the time Received my first cell phone at the age of 16, I have 3 contracts with M.T.N, they had not billed me on the date 20/04/2015, they was no notice and when trying to contact the call centre there is disruption from the strike which is not my problem, in the month of June two months I receive an sms stating that my account will be suspended due to not paying a bill. I have been trying to contact M.T.N from the first debit order and now I receive this message. M.T.N has breached the contract to provide a service to its customers by not even having a department to contact as service provider. it seems that the services are not on strike when money is not apparently received how convenient.<br> <br> I want my account reinstated as I will be Migrating to a better service provider that can actually offer a service.<br> <br> Very Irritated client.