VODACOM dissapoint YET again....

i have been paying my account via EFT for the past 4-5 months as Vodacom NEVER debits on time, I again paid this month on 27 May an amount of R6204. What does Vodacom do? Put through another debit on 1 June. I phoned the call centre, Nandi was of NO help to me, as the service call needs to be logged and that can take 48 hours apparently. When I ask for a surname, that is also not allowed. I have legit had it with Vodacom. I will start the process of looking at other service providers. DISGUSTING service.....