Poor Service

Last year,on the 22 Dec , booked my phone for software upgrade becuase it was giving me problem,freezing,roaming,slow and sometimes it switchs of the screen.<br> I was told ETA is 7 working days,i waited till i got my phone on the 7th Jan 2016,the repairs dept was so ***********,no answers,no feedback or follow up on my query,had to call them almost everyday and fight for feedback,<br> Phone is still not fixed as its worse than before and am not willing to take it back again as it might be another 15 days without a phone,