Same here - Brazil
The response from server on submit the form is:
{
"responseId":"f4539077-8849-448e-9ab1-44515d64ff23",
"resultCode":202000,
"resultString":"Your request could not be processed",
"userString":"Your request could not be processed",
"creationTimestamp":"2020-07-28T14:19:16Z",
"userLocale":"en_US",
"requestUrl":"https://developer.apple.com/services-enrollment/submitIndividualEnrollment",
"httpCode":406
}
Maybe it's a server side problem? Seems that Apple does not care about it.