I took an ambrane tablet in April 2016 and soon an issue popped up with charging port as expected, hence I visited one of service centre (Java telecom) in Borivali West. They repaired my device on chargeable basis in month of August 2016 and I got my device back, I was dissatisfied with the kind of device being repaired. The entire body was not properly fixed, the was problem with volume key and I returned back device later on volume key issue was fixed, however when I came back home I came across another issue and this time it was with volume of device as there was no volume on speaker.
I have no idea what to do and where to go coz I have no confidence in that service centre people. They didn't even gave me any recipet for the charge they have collected from me for the charging port issue.