VODACOM SUCKS !!!!!!!!!!!!!!!

I have changed my bank account at the end of February. I phone Vodacom, DSTV and Discovery as they are the only debit orders that i have going off my bank account. I informed them that the debit order will not go through as i have changed my bank account but i have just paid it by internet payment (which i did, meaning that none of my debit order accounts was in arrears !!!) During March, i got my Vodacom bill saying that is is R 101.00 extra !! I phone them and asked them what the problem is ???? I then told them that i refuse to pay this extra R 101 and that i will not give them my new banking details for a debit order, i will just continue to pay the account by internet transfer. now i got a sms and a phone call from Vodacom saying that if i dont pay the R 101, they will suspend my account !!!! I dont think this is fair as my account is NOT in arrears and i have informed them that the debit order will not be met as i changed my bank account !!!!!! I truly think that this is ridiculous and truly if Vodacom thinks that they will get rich with my R 101 they are making a big mistake. I spoke to a couple of Vodacom employees and the one is more "unfriendly" than the next !!! I truly think that i must end my contract with Vodacom and change to another cell phone company. this is not the first time that i have had problems with Vodacom and really guys, this is NOT ON !!!!!!! Please we pay enough as it is for our call and data, dont steel our money with petty things like this !!!!!!