Afrihost continue to ***** my money and offer no help at all!

For over 6 months now my cell phone account is being debited with unauthorised SMS's that I am not sending. I am overseas, so I am paying even more for these SMS's. R1.25 for each SMS to "45411". Afrihost simply do nothing, they keep telling me they have logged it and will come back to me once they have feedback but I never hear from them again until I follow up, at which point I get the same reply. They tried to suggest this is a subscription service that I signed up to, but I never signed up to anything and checking my subscription services shows no active subscriptions! Every different agent at Afrihost comes back to me with a different answer, asking me to do the same things over and over again and sometimes giving me contradicting instructions - they don't even seem to read my emails or twitter messages or DM's.....I have tried in every possible way to get their help but even their Social Media Lead: Carl Motaung just ignores my emails sent directly to him. My money keeps being ****** and Afrihost keep doing nothing, it is absolutely shocking treatment of a customer.