Changing Company Name to match legal documents
During the verification of my dev account (signed up for the Windows&Xbox program), I was told that the documents I submitted wouldn't match the company name I chose. Unfortunately, the partner center doesn't show any company name and when I try to change anything, I get a server error.
The server error tells me to contact support, but there is no clear way to actually do so. The support for the verification has only replied with a standard answer, reiterating what I already knew and what doesn't seem to work in my case.
The "Legal info" page only shows a "Publisher Name", not a company name (see screenshot below). I was under the impression that the customer-visible publisher name didn't have to match the legal name, but since this was the only thing accessible to me, i proceeded with changing that. However, when I press "Save", I get the following server error:
Something went wrong. Please try again, if this problem persists please contact Microsoft support. Http failure response for https://partner.microsoft.com/en-us/dashboard/account/v3/api/accounts/<my accnt num>/account-entity: 400 OK
Knowing that some Microsoft pages have issues with international phone numbers (e.g. the + not being accepted), I already tried changing the data to not have any special characters, but saving still doesn't work.
How can i proceed with this? I have already tried different browsers, finding that Safari and Firefox don't work at all for the Account Settings, but Edge and Brave at least let me open the "Update" page, with only the "Save" button failing me :'(