i am afraid it is not an ltr ! The fee for the ltr visa has to be paid when you have made an appointment to pick up the visa.After submitting the required documents it takes quite some time to get approval. Then you make an appointment to pick up the visa and you have to have done the payment before going to have stamped the visa in you. Passport. So paying the fee two days after submitting the documents makes it highly unlikely that you applied for an ltr visa.
no way to clear the fine. Most important do not arrested before you have reached and spoken with immigration officers. 90 days overstay and contacted immigration's yourself one year ban. 90 days overstay and caught by police: 5 years ban. You can try to negociate down
what sort of ltr visa you were applying for ? Are not many ltr visa that could suit you. Maybe you are wrong. W aiting for your reply so others can learn from it. Or is it just not true
Have a look at thailandblog. Extensive information about the Dutch Health Insurance . Almost impossible to get a statement about your health insurance that will be accepted by immigration