Apra maruti service centre
Service is not done

I got my car servicesd through apra mariti service centre, gurga on on 4 october, in my car there was a problem of engine oil leackage for which i was adviced to change the ring (seal), i did the same from there but after two days it again started leaking, now this time they again charged the fee and changed the ring again, and now it again started, if they cannot give the best solution then why they opened the service centre, wasting my money and time, please help, 9999501022