Still unhappy more than a year later!!!

Second complaint responded to but not resolved!! It is impossible to contact anyone who is available to help with an issue! The original problem was that we were charged ridiculous amounts for internet usage after being assured when taking out the contract that the line would be capped at 3gigs and would NOT go over 3gigs. We then did NOT receive any invoices but were disconnected after 3 months for non payment. We then asked for an itemised account of our usage and have still to date not received one!! second complaint was for the same reason! To try contact them to explain that you may have an issue with payments for the next few months is impossible!!!!!then when I made a payment at the end of last month they decided that today on a Sat we would be disconnected, no oneis available to help us now!!!And yes, still NO STATEMENT from MTN for monies owed!!NO warning SMS!NO warning PHONECALL,EMAIL, nothing!!!!!Just disconnected and left in the dark still!! Once this is paid up I will NEVER support MTN again nor will I be encouraging people that MTN is the best. Feels as though they see the number calling and have a warning that says DO NOT ANSWER. OUTRAGED!!!!!