Vodacom most *********** servise provider ever.

I want to know an e-mail address to who I can send proof of payment to ... my phone was ****** months ago and my tablet not suitable for talking....I have received numerous e-mail addresses and even a fax number but with no reply...this has been going on for months as this payment to incorrect account number has been made 30 June and totally unacceptable to pay for service currently unavailable as my line has been cut.....my work number up until 4h30 this afternoon is available....021 ********** ...leaving me uncapped when I asked for it to stop at applicable amount was ignored previous time when I asked....a bill of R4000 is no joke for a single mom with responsibilities......please advice....