Motorola Solutions — Moto G3 / out going voice is very low

Address:

Jaipur, Rajasthan, 302018

My phone was having some problem for which I took it to moto service center, jaipur (job card no.1173) they took a month to resolve the issue but they put on other issue of low outgoing voice, I have been there for 5 times but they aren't able to resolve my problem and now they are saying phone is fine from there end but the issue is still there. There answers is very rude and unprofessional.The floor manager whom I talked with is mr.pankaj. I'm getting frustrated with Moto service, please help asap.