Vodacom bad services

Claiming to be the best cell network is hard to believe, it is the second time the year that I am struggling with my accounts at Vodacom. First when I upgraded there was services on my account that I did not subscribe for, after massive amounts taken of my bank account they did not gave back my money but credited my account, my account is paid by the work and is a bussines contract. Double payments on 1 account. Secondly I changed my banking account and send a e-mail with all the details that they need plus after they asked me again for my ID and the new banking details, they confirmed they received it. When I saw that the debit order didn't go of I phoned they said to me that I am not on there system and they haven't got a ID of me and that I must send it because they can't change the details of my account with out a ID document. Now they send me sms's that my account is behind and that I must make arrangements for payments. This is not my fault and at this point I want to close all my accounts at Vodacom and take the next aupgrases or new accounts at other networks.