[Resolved]  Bajaj Xcd 125 — oil leakage and charging during free service

i buy a bajaj xcd bike but there was oil lakage from the engine bolt hole . within 4 days i told this to sarbani motors chandrapur (from whom i buyed my bike). i did the servicing two times but they did not solved the problem and opened the gasket ring of engine and charged me some rupees to me which should be free . i told them before if this time they cannot repair it they should change the engine they said no so i have to launch a complaint. fed up of this bike and sour service. i thought to exchange the bike with tvs flame bike but when the tvs dealer asked on mobile about the exchange price for the bike the head at bajaj asked what is the no, the tvs dealer said no is difficult to read then he asked, what is the colour, and how many days is the bike old, then he said just 30 thousand i got shocked. then i thought they are not going to replace engine neither can they repair it because they also said that we will fit bolt over that hole with rubber grip
sir
but question is there could be a crack or unwanted hole on the inside of engine so this should be replaced .
also my bike was returning low mileage of 65 i said to increase the average they charged 56 Rs for average setting now the bike i think returns the same 65-70 so in this way i m suffering ...
please approve my proposal sir
thank you