The language in extranet has changed to english. Maybe when you made some changes i asked in my account. Can you please change the extranet language back to
The program does not allow me to record my tax number, it is impossible to contact the company in Hungarian, I can't speak to them in Hungarian, I only have an
https://partner.booking.com/en-gb/community/just-joined-bookingcom/how-…
Above link has all the details you need.
Wish you a great start.
direct guide :
Dedicated Partner Contact Options - Visual Guide
In general verify location by post can be up to 5 weeks but after 3 weeks simply phone Partner Support to ask for alternative method.
This will then remove restrictions.
Kind Regards