Today I talked with a Microsoft supervisor, but this time on a call. They said, again, that they don't have access to the account and only Mojang can do something. Please help me.

Do you happen to have the ticket number that you submitted? I'll need to take a closer look into this matter. ^Tk

Where can I find the ticket number? I can't find it in any mail.

The ticket number would be tied to the email that you sent the ticket in from. ^TK

There is no ticket number in any Minecraft Help mail D:

Then you're going to need to send a new ticket. Please send us an email at msft.it/6017bW8eR and we will assist. Remember to attach your Transaction ID and account name / Gamertag. ^TK

I sent a new one very recently

The ticket ID is the one that appears in the URL?

Yes, that would be the one! You should also see the 7 digit ticket number on the email. ^TK

Found it, I think 4087908