Service light still turning on after having the car service done

This light comes on because the problem is still there or you have a new problem. can you tell me what repairs were done? Also, can you scan for codes? here is a guide your might be different because of your location:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.

Spark plugs changed.
Full oil change .
All air filters were changed. brake pads and wheels fine and done a diagnostic test.

There is a service light and an engine malfunction light which one is it? can you upload a picture?

It's the service light.

Okay, turn the key on without starting the engine, rapidly depress the throttle five time to the floor, the service light should blink. Then shut the key off and restart the light should be out. This may take a few times to work. Please let me know.