Poor Customer Service

Early May 2018 i received a call from people calling on behalf of Mtn they offered me a promotional pack which is lesser then what i was paying i agreed to it and they told me they will deduct the following month, on the 26th of the same month they debited R908 and thats three times of what i was paying for my two sim cards. I reversed the money and paid what i know i immediately called mtn and told them i want that pack to be cancelled. After two to three days they sent one sim card that i have never activated i called and told my story the agent from Mtn said i must call the guys whom called me they gave me a number to call i did but with no luck. Ever since then my services were always suspended. Id pay R908 for R250 airtime which did not make sense but because i was desperate for services. Last week i received a comment on fb saying i shoud inbox my story Mtn Facebook i did i was advised to make a payment of R380.09 and once the payment reflects they will switch my services on after paying advised again that i have made the payment till today they have not said anything i am sick and tired of Mtn huh tjo