Vodacom does not only ***** data, but money from your bank as well

I took out a U choose 220 contract in April 2018. This is a R398 pm contract. End April they debited my account with R800. From there every month they managed to ***** up my debit orders. My line is currently cut as according to my invoice I owe vodacom R807, according to one of the consultants I owe R408, and according to the debtors department I owe just below R900. NO ONE CAN PROVIDE ME WITH AN ACCURATE AMOUNT BUT THEY EXPECT ME TO PAY??? Above this, my data ran out the other night whilst my data was turned off, and I was connected to the wifi. Vodacom does not only ***** data, but they debit incorrect amounts as well. This goes as a warning to anyone who is considering to open an account with Vodacom.