i brought karbonn A9+ on 12/03/2013 and after three month handset having battery problem, and i go to service station, they make softwear on two times on 30/07/2013 and 6/08/2013. but battery discharge in 4 hrs. only without using net or memery card. i request to change the battery but in service station the battery not available. what a rediculas service facility karbonn have??????