Nokia — switch on problem

Address:

West Delhi, Delhi

I have purchased one mobile(6303 model) in December 2009. I was facing hanging problem in that mobile and gone to nokia centre. They have charged me 2000 and told that there is key pbroblem but after one week i was again facing same problem.i have gone to nokia centre again in this time they have told that software problem and they kept mobile for two days. i kept going nokia centre but my proble was not sorted out.
I have purchased one more mobile on[protected]f model E63 from c-126, naraina industrial area, new delhi-28 billno. 5752 of rs. 9200 and now in this phone when i was talking then phone automatically disappear diplay.I went nokia centre they advised me to go to nokia service centre where i was told to leave the phone for two days when i have gone after two days they have told me to come after seven days. I could not understand that why this is going in every mobile that i have purchased from nokia naraina my first mobile is still with me in nonworking condition and it appears that this mobile will also be not sorted out. I am going to consumer court with this complaint and mentally harrassment.
Please let me know if you have any other option to solve this problem.

My phone no. is [protected]
Rakesh Kumar Singh.