Hero Motocorp — Pleasure+vx model/ engine oil leakage

Address:

Shivang automobiles plot no 573 near bombay naka new bombay agra road nashik 422001

I bought new pleasure + model. Did servicing on 27/1/2021 they said 'o ring' is fixed but on next only we saw oil leakage is still persisted. This is a new bike it's not expected to have a oil leakage in initial days of buying. Seems like it's a defective bike piece delivered. Oil leakage in engine makes this bike useless need some serious action taken on this, please assist.