Guys, need your inputs.

Naputol un head ng isang screw ko that holds the plate number sa front bumper. Nastuck ngayon un rest ng screw dun sa thread hole. I tried to forcibly "unscrew" it by spraying it with penetrating oil and using pliers but to no avail. Any suggestions what to do or where to go? Hindi ko kse maikabit ngayon un plate dhil isang screw lng maghold baka malaglag pa. Appreciate any helpful info.

Thanks!