[Resolved]  Samsung Service Centre — the mobile phone is fully damaged after preparing by service centre of samsung

Respected sir, i gave my mobile phone i. E. Is s7 edge samsung to samsung service centre at visakhapatnam for repairing 2 complaints i. E. Is front and back display & battery changing on the date of 19/05/2020. Then service centre accepts my mobile for repairing 2 complaints by taking 1000rs advance bill no [protected]. After 3 days i get call from service centre i. E. “ your phone’s 2 repairs are completed and very good functioning, so you please collect your mobile” on the date 0f 22/05/2020. On next day i. E. 23/05/2020 i attend to service centre they gave my mobile to me and i checked the mobile on the spot the 2 repairs of mobile which was mentioned above is completed but the mobile service signals are not working and i mentioned this problem on the spot to them and they took my mobile back by saying please wait 4 days to rectify it. The problem is when i given the mobile to service centre there is only 2 complaints and remaining all parts are very good functioning. After repair done by service centre the new problem is a raised and they fully damaged my phone which is cost of 50000. I am contacting to service centre regularly but there is no use, until now they did not rectify my mobile & return to me. So please do need full help sir.
Thanking you
Service centre address:-
Innovative electronics dono:[protected]/6, 1st floor, aspen tower, resapuvanipalem, visakhapatnam - 530016 contact no:-[protected]