My parents in-law have been billed for an unknown period for a "MobiX Treffers/VIAME" subscription service. Only thing is - they have never subscribed to anything. For one I know they don't know how to connect to the internet and they also say they have never sent any sms's or replied on any.
They have since stopped the service at a Vodacom branch, but I would like to try and get their money back or have these sharks up for fraught or both. Any ideas...?

They have since stopped the service at a Vodacom branch, but I would like to try and get their money back or have these sharks up for fraught or both. Any ideas...?