Vodacom Brooklyn Broke my phone with no feedback

I have posted on hello peter on the 7 December concerning this query,Vodacom only sent an email requesting my imei and has since did nothing about resolving my query.i booked phone in on the 13/11/2015,faut was heart rate sensor faulty,at repair centre in potch they replaced the screen using up my ADH warranty wrongly, as while it was in vodacoms care they had broken the screen.They returned phone to store without heartrate senson fixed,then they rebooked and returned for a second time without fixing,they have broke my phone while in transit, I requested photots of how phone was broken,i was even called by Mr Given confirming that phone wasnt cracked when booked in,They have not responded or fixed my faulty out of box heart rate sensor fault.Vodacom should replace my phone as it was booked in excellent order,they broke I cannot accept a phone that was broken.i require ur urgent reply as this is almost 2 months outstanding.i haver called the store on several occations.ive raised with many staff memebers, Mr Given,Mr Tohann, Mr Mike, And finally with manager Mr Craig.he promised to give feedback but all he did was pass the buck to Repair centre, Can you guys b responsible pls.