How to advertise a service in service options

Not sure if you mean a Service listing, in which case just start a new listing and choose the Services category.

If you mean how can you advertise a service in the adverts that appear in service listings and categories, then see this page for details...

Trade Me Advertising | Trade Me

It doesnt bring the service option up

Maria, Service listings are basically classified ads and many of those can not be listed via the apps. You will need to use the desktop version of Trade me, which you can do on a computer or your mobile device browser.