Can't set up billing

When I press “Set up billing” button on this page https://aistudio.google.com/spend, it allows me to choose country, but after that I see only white screen and can’t finish setiing up. My balance is already topped up, I have a payment method.

Already tried:

Different browser
Inkognito
Checked ad blockers (none of them are present)
Refreshing, cleaning cookies
Checked third party cookies - enabled

Please help

And also tried different device