Telkom called me to upgrade my service now all I have is issues

I upgraded my landline to a 4mb line with a special Telkom is having , which includes a free modem ,tvbox and usb mobile ****le , I have had the divices for 3 weeks now and still can not use my usb for my mobile data , I called the call centre numerous times to be told I need to go to the Telkom store when I get to the store I get told to call the call centre and this has happened with 3 Telkom stores and I am still sitting with no help or assistance to get my simcard activated as the stirecsay call the call centre and the call centre tells me to go to a Telkom store ?????