Voltas — Worst service provider

Address:

M/s synergy electronics goregaon E

I had got my warranty extended for 5 years with your service provider m/s synergy
My ac was not working hence called team to look into it they came twice took 3-4 ac parts and no one is giving me a proper response it's mora than 20 days now nothing is resolved yet
1st they told me inspite of same inti warranty I will be charged 4k of which they took 2k in advance later I got a call stating nothing will be charged we will refund then again they started chasing me to take money
Secondly the engineers who come at home for repair do not have manners to speak