Karbonn Mobiles — Service is not Good

Address: Ambala, Haryana

Sir,
i have Given My Moblile "Karbonn K570" to the service centre on 17th-May-2011,Because The touch screen of that handset is not working properly.
They said me that we will Give back my Handset Within A month,But I didn't Get a right Response from them.
its 2nd of august (2011) now.its been a 2 and half month passed,i didn't get my handset back.

HERE ARE SOME DETAILS OF THAT MOBILE (provided by the service centre) :

1.ASP Code : KJASPHR070
2.Name : Bee Ess Aar Communication
3.Customer Name : RAJAN
4.Model : K570
5.Warranty : UW
6.Voice Of Customer : Touch Screen Not Working | TSP
7.Date : 2011-May-17
8.Contact No ;[protected]Service Centre)
9.IMEI/ESN 1 : [protected]
10.IMEI/ESN 2 : [protected]

Sir i am waiting for a good reply from you.

Regards,
Rajan
Contact : [protected]@gmail.com