Vodacom sux

I reviewed my contract 2 months ago. Lady at help line was lovely but now since been told am am owong arrears clearly not so.. confirmed online with their robot tobi, whom I I got whilst waiting to speak to a human,, that my acct was 100 per cent fine.. then got notification I owe a further 199.99 to not be disconnected. This has been going on since Jan. I gave vodsvom a rave review for handling my last query. I remind they didn't handle at sll