I tried to recover my Mojang account and migrate it three times. Each attempt gets a stock response asking for certain info (receipt, email, username). When I provide this, I get a response from a different support user asking for the same thing I just provided. After three to five back and forths (with the same questions and the same answers) I get busy, frustrated, and leave it for a few weeks.
Once I have time, I start over and the exact same thing repeats again.
I wrote it off as a loss last year with an asterisk of “another reason to fucking hate Microsoft”