IFB Industries — Washing Machine Service

Got a call from IFB Service saying sir Need to do the Service as your machine is in under warranty. Allowed them for the service. My Machine was working perfectly fine. Once the guy visited who had n experience he unnecessary opened machine and unplugged/Plugged many items in side machine and he left. Next day when we tried using machine its not working. Now when I am calling Person who called me for service and the technician who cam e for service both are not picking my calls. Pathetic service.