Samsung / Gt - S5570 — poor service from service center

Address:

Durg, Chhattisgarh

i have purchased GT-S5570 samsung galxy pop android version on[protected]. bill number 81R1104017 from lotus(unit no. 16,city mall 36,1st floor,G.E. road[NH6], raipur.) . i have submitted my mobile to the service center(service center[protected] near ppt college,durg on[protected]. The mobile was held by the service center for 1 whole day but none of the work was done. The mobile has the following problems- 1)- the mobile gets excessively heated before the mobile battery gets full charged. 2)-the mobile battery gets discharged in just around 15-20 hours even when nearly full charged. 3)-i wanted to know as to how i can activate my mobile tracker.
kindly guide and solve these problems as soon as possible.