Vodacom accounts deparment still fast a sleep!!!

Once again Vodacom is fast asleep. Never had a problem with my debit order but all of a sudden Vodacom decided that they will send me sus’s that my debit order are returned again, that after I already had a fight with them that my banking details did not change and that somebody is not doing their job at Vodacom!!!!! How many times do I have to call Vodacom in this regard and how many times will Vodacom tell me to pay cash to prevent penalties on my account?!!!!!!!!! Vodacom is just getting worse and worse. Every time the poor consultant apologies and promises are made that everything will be corrected but nobody correct Vodacom's Faults!!!!!!! When will somebody wake-up and look in to my account and see for themselves that my account was never in arrears but now suddenly Vodacom decided to change my banking details and aspect from me to pay cash!!! No ways when somebody awakes at Vodacom they can resubmit the debit order to the right bank account!!!!!!!!! Do they do this returned debit order thing to get more money out of penalty fees for late payment? I'm now sick of Vodacom’s disability of doing their job!!!! Please Vodacom account department WAKE UP!!!!!!!!!!!!!