You bought a car that is less than 1 year old. Depending on mileage/ service, the air filter should be Inspected at 1 yr, 2yr and replaced at 3yr. The cabin filter would be Inspect at 1yr, replace at 2yr.
Normally the '150 point' (or however many point) checks that come with a used car include things like check the oil level (not the condition), check the car is clean (lots of different places, probably worth 10 'points'), panel damage, doors open etc.
If the list includes 'check filters' which I doubt, you would have recourse to talk to them, or if they stated they had performed a service, but otherwise it's likely not something they would have done. If you talk to them nicely, they may be able to look at getting a service check done as a goodwill as you bought it up.
I would check the maintenance schedule and look at getting a service done if it's due.