HTC India — Poor & rude service

Address:

Nashik, Maharashtra, 422005

I have a very good experience of htc phones & hence i chose to go with this handset htc-1 e9s. However recently i have been facing issues with the service station situated at shop no-2, 3, 4 amba co op soc andhashala bus stop, nasik road, nasik which has been shifted to canada corner, nasik-422005.
The reason i had to contact the service station, because the phone display has to repaired. I have been following up since a month now for an update of phone repair with the representative named mr. Prasad sonar on his personal mobile as the office landline is out off service as always. As mr prasad is being very rude & use harsh language which is not acceptable. Kindly let me know how to proceed with this & get back my htc phone at earliest & also please trained your service providers to provide good service & proper etiquettes.