Vodacom technical problem on Data bundle purchases

<p> For the past 2 to 3 weeks I have not been able to buy data bundles on the Vodacom network. I have tried *111# and logging in via internet and yet no data bundle is loaded. I have called customer care and they say they have a technical issue and trying to resolve but how long is this taking? Whilst Vodacom cannot resolve their techincal problems, Im still being charged for out-of-bundle data rates which is pushing my bill up and up. So A little technical problem of Vodacoms doing is resulting in their clients being over charged! I think this is not in line with the signed contract and is in effect grounds for breach of contract? How can a problem on the Vodacom side justify vodacom continuing to charge their customers. This is *********.</p>