. . .you could have easily found it all by yourself. But this text, too, is missing the part that the name on the birth certificate is not enough proof of being the legal father, for the one-year extension. Only for the visa itself, the birth certificate is enough. For the extension of stay permit you need the family (juvenile) court approval
for the application to the "change of visa type" from a tourist visa to a 90-days Non-Imm-O visa, the money just has to sit in the account. The 2-months seasoning is needed for the application to the 1-year Extension of Stay
one cannot get a 30 days extension on a 90-days Non-Imm-O visa. The only way to obtain 30 more days of stay permit, is to leave Thailand before the 90 days are up and re-enter visa-exempt
the TM30 is the registration of you in any accommodation, must be done by the hotel or the landlord within 24 hours of your arrival at the accommodation . . . . . .in case you were not asked for the receipt, you can call yourself double lucky!
Immigration generously granted an extension despite the overstay: they issued a 30 days touristic extension for 1900.- THB, however minus ONE day. And the 500.- THB overstay fine came on top of it . . . He's the lucky winner, now he is good until March 2nd
well you would have to spent the 1900.- THB on top of the 500.- THB by any means. On Immigration they might insist you take the 30 minus 1 -days extension OR the "application denied you have 7 days to leave the kingdom" stamp. Both will cost a 1900.- THB fee