HTC — Delay in delivering warranty mobile set

i had given my mobile hand set HTC desire 816 which is under warranty for repair at sri A one sales stop, gulbarga which is authorised service point for htc mobiles on 18/6/2015, 17 days have passed but still iam waiting for my mobile.On 30/6/2015 i received a msg from htc that iam going to receive it within 2 days but the service point is saying that they not aware of on which day they are going to receive it from company and hand it over to me, plz do help me to get my mobile in time.