Karbonn Mobiles — delay in service

Address:

Surat, Gujarat

i purchased karbonn a15 mobile from flipkart in feb2013. the instrument was not running good and having problems with it.So i submited it to karbonn service center at "DIVY TELE SERVICES SURAT". and since last one month after many time enquiry they answering the same your phone is in compony, it will take time. even mailer response is also worst and takes 5-6 days to acknowledge the mail.

09 september 2013 handset submittion
10 september 2013 face to face enqiry at service center saying enquire again on friday
11 september 2013 annoying response on enquiring on call
13 september 2013 mailing compalint to [protected]@karbonnmobiles.com
18 september 2013 acknowledge mail or receipt from karbonn
26 september 2013 mail saying my mobile is at main service center delhi
26 september 2013 i mailed them for quick action and respone

still now they didn't respond the mail and when calling to service center same answer "phone is sent to compony, it will take time"
even toll free no.[protected] is saying busy all times.

now i want to file complaint against it and want my money back.