Car is leaking fluid. Oil just changed. now Oil Gasket& timing cover changing. on 2006 Chrysler Town & Country

Pep boys tells me the two issues are unrelated. I don't see how a company can change your oil and a couple of weeks later I see leaking but the two things are unrelated. They are charging me 889.00. It seems like the leak is caused by the oil gasket or the timing cover. Why would it be both? This seems expensive?

Asked by for the 2006 Chrysler Town & Country
anything can happen at anytime. timing cover and oil pan gasket bid is not bad. it is within about 30 of my figures.
get a second opinion if you do not believe them.