@Dany *******
I can assure you that Jomtien Immigration office collects the 2,000 Thai baht fine on the spot before you are allowed to proceed with any needed Thai Immigration service.
The first step into the Jomtien Immigration office is the 90 day report desk... They check ✅ if you have filed a 90 day report on time.
Collect any fine due, then you can go to the other desks where you need service.