HSDPA weekender contract for R50 pm

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Hi peeps - was at Vodaworld today and Smartcom are advertising a free 3g/HSDPA card on a weekender contract @R50 pm. No free minutes, no data packages - you need to bolt on your own at a cost of course - but if you look at the price of R50 x 24 = R1200 for the card it might be worht it. Unfortunately they are not linked to VodacomSP so I would have had to lay out my whole pedigree for the contract which I did not have with me....
Regards