Disgusting Service

In the first month of my contract with MTN I was not billed for the services. I visited the Clearwater Mall branch and was advised this was normal. I even offered to pay cash but was told that my account had been set up to run one month in arrears. MTN has since been cutting off my services and randomly reinstating them and when I contact the call centre the excuse I that I OWE them! This month my bill has come back as R642.00 and once again I had to contact the *********** staff on 808 only for the guy on the other end to fail dismally at explaining why the bill was this amount when they initially refused to take payment and told me that the account was set up to run one month in arrears! I requested to speak to a manager and was placed on MUTE by the agent for 36mins! After which realising I was not going to put the phone down he cut the call! The service levels are simply appalling and in addition to this data and airtime is constantly disappearing off my phone! I have never been more disgusted at a service provider!