sir maine karbonn company Nxtel,banglore se 5 month pehle 5/15/2013 ko karbonn a30 mobile purchase kiya usme problum create ho gayi wo heat hone laga,maine shimla ke aur solan ke service centre per repair ke liya gya to koi sunvai nahi ,ho rahi taal matol karke refue kar rahe hai,koi b service nahi de rha ,,,company ko do baar mail ki but wo kehte hai fir se s. centre jao.centre wale recive nahi kar rahe. pls help me sir my invoice no s1/1949