Vodacom accounts a disvrqce

I took out a vodacom data package. They didn't debit my account so each time I got an invoice via email I paid. They cut me off cause they said I didn't pay. I have sent through proof of payment roughly 10 times including going to accounts in Pavillion. They spoke with accounts, sent through prood of payment and all I ever receive is we need more information, they cannot trace my payments. Proof of payment with all information on from the bank is not good enough. If they deduct from my account I will be forced to sue them.