Lava A10 Mobile — software problem

Address:

Kapurthala, Punjab

SIR,
A LAVA A10 mobile has been purchased by me on 18/02/2010 from Diamond Enterprises, Phagwara Gate, Jalandhar. His imei number is [protected] & [protected]. Mobile is not working properly whenever battery whenever software problem is continuously facing by me and i have been meet lava authorized dealer M/S Asian music center, sultanpur road, Kapurthala, but handset repaired/software re-installed by kapurthala dealer.i registered my handset complain at kapurthala dealer on 04/10/2011 recently and 2 complaints already registered by me before 3 & 7 months also but Job card is not made by dealer.after this handset all menu is not working proper as like butterfly option is not working yet. regarding this dealer said butterfly option is not running but all menu running proper when i ask him for this option on date 04/10/2011.
I want say that satisfactory service is not given by dealer to me regarding handset. please do needful for me because i can't believe on my handset that this will working proper or not, a doubt lives in my brain. thanks