PAYING FOR SERVICES IM NOT USING

i first lost my phone and had to do a simswap, it took them 4months to log it after many visits to the branch with no compensation, in the meantime MTn was debiting their monthly instalments of services that i didn't have. a few days later i booked in my phone and( this was december 2014) you wont believe this my phone has since been booked in,last week i called the branch and i was told on MY request that my phone was actually back in the branch, i went in to get my phone and the phone was not fixed. this is in essence 8months of paying the full instalment and getting half or nothing of my moneys worth. i spend money to go to the branch, i spend my precious time standing in the queue of no success. this is unbelievable and really a *******.<br> please advice what should i do now going forward because I'm still paying and the termination fee is insane. i want compensation and showing a bit of competency will be highly appreciated by me.