HTC — poor service and waste my time

Address:

Jalandhar, Punjab

I had purchased a Mobile Phone on nov 2014(ticket no. 15INA[protected].after 3 its display break so I give it to service center for repair on 27 Jan 2015.They say that it get 15-20 days for repair but after 20 day when I call them they say that they have no parts so please wait for one week more.after one week they say sorry sir parts are not arrenged.So I compliant on web and then they call me and said that they provide me new handset 820q in 7-10 days but after 10 days they said that sorry sir there is no update od dispatch date of your handset.please wait 1 week more.and still now one and half month they dont give me my handset.And service center behaviour is very rudely