I have bought E61i. I had given my mobile battery to the dealer Matrix Shop No 3 & 4, D. No 5, Venkatnarayana Road, T. Nagar, Chennai -600017. Since then i have gone to them three time to get the replacement. It is more than a month and i am not able to use my phone. Neither they have provided any temporary replacement nor they have returned my battery. Rather the store manager name Mr Vishwanath have been rude in this behavior. I then...