No service

I baught a fantastic Telkom mobile wifi device which served me very well wile I was in Johannesburg, before I moved I was assured that Telkom is nation wide and it would work anywhere in SA. So I baught 20 gigs of data, got married and moved down to the western Cape. The Internet does not work here at all, I don't even get 2g service, and I need the Internet to find a job in the new Town. So I searched all over Google and eventually found a customer care email address which just never responded. I just either need whatever will make the Internet work or to get refunded the money for the 20 gigs so I can use it to get Vodacom Internet. Telkom should specify where it works if it is not nation wide.