I've also experienced numerous disconnects since yesterday - I'm in the city bowl, Vredehoek, at the moment. What on earth is going on at Vodacom, that precipitates this kind of intermittent service for a product which is so expensive? There seems to be zero proactivity when it comes to service delivery.
Should anyone watching the v3g alias notice this post, it appears to occur when a connection is attempted after a bout of inactivity. Yawn, same old story which has reared its head since earlier this year. (I pity those vodacom users who bother to waste their time logging calls via 155).