I bought a data booster pack -2Gb for $30 dollars - that's $15 per gig, but it was too late, they had already charged me at a rate of $250 per Gb!
Since I am no longer under contract I'm free to leave for a player like Boost, which is offering unlimited calls and SMS with 3Gb of data - which is twice the data allowance of my Vodafone plan for only $5 per month more, and no chance of running up an excess data bill. I called customer support, thinking they would try their best to keep a happy customer, since they have been bleeding customers since the vodafail network debacle , but no... all they did was try to upsell me on plans. I even told them I was thinking of porting out...
Anyway, the port from Vodafone to Boost took less than an hour. Bye bye vodafail!