okay
@Ka***
dial the paranoia back a bit and take a deep breath. You already applied for the extension, you paid your money, you got the under consideration stamp (which is something THOUSANDS of people have done) so just go back to that immigration office that issued the u/c stamp on the date it says to return ON the stamp and you'll get the rest of the extension inked in.
Good luck, take care, stay safe, STOP being paranoid :)