Supper frustrated

on the 20th of october I lost my cellphone(on contract with telkom), I called in to blacklist the device, a few days later I got the phone back and since then I have been struggling to unblock my phone, I have been sent from pillar to post by the staff at the stores and the call center, I've been to see a technician as well and I'm not getting any assistance whatsoever, the last time I called I was promised that I would be called back in 24 hrs - that was 2 weeks ago, well I'm still waiting, in the mean time the debit order is going through every month( paying for the phone I cannot use). I find this very frustrating. the service really is beyond poor, it's like no body cares whether customer queries become resolved or not.