Legal *********! Do not take out a contract them!

I have been a good paying customer for the entire period of my contract. However, when my contract came to an end and I decided not to renew my subscription with vodacom i have been dealing with never ending hassles. They have been taking advantage of my account. Debiting amounts whenever they feel like it. When you contact customer services im constantly referred and told my matter is being investigated into. Its been months! Do not take out a contract with these legal *********!