Nokia — Getting Switched Off

I have purchased Nokia Mobile @Poorvika mobile shop Thiagaraya Nagar Chennai Pin code 600017(Pondy Bazzar) in August 2009
ESN/IMEI Number: [protected]
Product Code: 0585578, Bill No: 4412 Dated[protected]
Phone of the shop No: [protected], 42605517
Privious Complaint Registration No: 6b1a1
Technology Type: GSM
Modle Name: 5130c-2
Service Provider: Airtel
Mobile used by my daughter : Miss Sathyapriya
Mobile Number: [protected] Chennai Tamilnadu State
Warranty Ref Number : APAINY[protected]
Service beinging doen at : Rocky Agencies
New no : 32, Old no: 10, Thiru Vi ka Road, Royapettah, Chennai-600014
Phone Number:[protected]
Email: [protected]@nokiacareindia.com
Job Sheet Number[protected]/091231/86
Date: 31/12/2009
The Mobile serviceded on 31/12/2009 and taken back. Again the same problam started (Mobile is getting switched off during talking) Untill now in four month peroid mobile getting switched off more than eight times we have serviced in authorised nokia service center more then three times. Each time service engineer informing that now it is corrected you will not get any problem but the problem is continuing.
Now we are requesting you kindly exchange with the new mobile
Thanking Your's
Faithfully

V Gopal Rathanam