Karbonn Smart Tab 2 — it is not working properly

Address: Gulbarga, Karnataka

dear sir, i have taken karbonn smart tab 2 and it is not working properly and i have given the the complaint to [protected]@karbonnmobiles.com , and i visited to servicing center but both are not responding well and when i visited the servicing center they told me to keep tab with them for 2 months and when i install any apps from android market it wont opens so pls do needfully to me