what? I asked what immigration office they used. I know I can use my one. But some offices may have different requirements to others just as embassies and just like when applying for other visas. The info may be useful for others to know too. Im referring to the 180 day extension.
Contact your payment provider maybe? Do you have card linked to the phone number u are using? I had to enter a code they sent to phone so maybe that is the issue