HTC — Same problem after repair

Address:

Meerut, Uttar Pradesh, 250004

I have submitted my htc set i.e.htc desire 500 on 24.06.2016 to htc service centre at meerut.The problem with the set at that time was very low audible volume at the other end. They delivered the set on 10th july after replacing the mic pcb of the set which was according to them causing the problem.But after that the problem worsened so I again visited the service centre on 16th july, they again took the mobile for more than a week, On 25th july they delivered the set without the rectification saying that this is the best they can do.they charged rs 1250 for mic pcb.after that some new problems in speaker has also started.They have not provided any job ref. no. on the job sheet which you can see and failed to explain the reason when asked. It appears that either they haven''t changed mic pcb of the set at all or they failed to recognise the actual problem it also appears that the speaker has changed during this period deliberately.In any case I have to pay rs 1250 to increase the problems of the set I filed the complain with htc customer care on 26th july and registered online complain on 28th july.Even after a week there is no response from htc.