Samsung Star S5603 — No proper response for Samsung Mobile S5603

To,
I have given Samsung Star phone S5603for repairing Phone Charging point which i had purchased just recently in nov 2009 i-e within the warranty period. But surprisingly, there is no response even after 20 days.This is very shocking experience of mine. Since the Samsung Service centre in borivali is even not giving me the exact date on which i can get back my phone.Nor they are giving any response to me. I m experiencing quite a loss ,because of not having my phone with me which is just bought.
kindly reply me at the earliest or replace me with a new piece.

yashit desai