Vodacom frustrates again!

I'm trying to find out why I cannot access my Vodacom account, but once again Vodacom 'Customer Care' has succeeded in being frustrating and disappointing. Call 082-135, they say. Same old annoying procedure: select a host of numbers; confirm 'phone number; voice authentication... still no human response... instead we get a message from Tobi, who wants your ID number. Are we not warned not to give out that kind of detail?? Surely Vodacom has enough information at this stage to ascertain the ID of the caller! The so-called 'Care' is really not evident.