Honda 2 Wheelers India — honda activa repaired at success auto, kondhwa pune

My honda activa mh-09- cq -2847 was got repaired from success auto @ 1-2 months back. I paid @ 7500/- i found a problem for engine oil leakage immediately after repair & approached the service centre where they carried out the necessary repair and oil top up. Now the vehicle has undergone total engine blockage due to oil exhaust and block / piston damaged. They have submitted a new quotation @ rs 10800/ - for repairs which has been arose due to negilgience during earlier repair.

Please look into and help me out from unnecessary financial loss.