damaged device

After 3months of struggling I managed to unblacklist my blackberry z10.but my vodacom simcard did not work in the device anymore only mtn,been sent to nelspruit repairs and back and then to arc in joburg,now vodacom claims that a part in the phone is broken that's why its not axcepting the vodacom sim card but the device was a hundred persent working untill it got blacklisted and unblacklisted again,vodacom not taking any responsibility.arc said they are sending back the broken device to me because I need to pay to get it fixed even though I didn't break it,and even in this situation still waiting for 2weeks to get my broken device back.vodacom is responsible for the damage on my device and they are just simply taking no responsibility.now I have a broken device still after 3months of strugling to get it fixed of which the device is still not even returned to me.DONT SEND IN YOUR DEVICE FOR REPAIRS YOU WILL ONLY GET IT BACK WITH EVEN MORE DAMAGE.