Minecraft account no longer works / Can only play demo?

Sa
3

I had the problem 2 days ago that I could no longer log into Minecraft Java. I'm 100% sure that I entered everything correctly, after which I tried to reset my password, I did not receive an email. Today my friend kindly allowed me to log into his account, and that worked, but when I started Minecraft I could only play the demo version, which I found very strange since he and I had both bought the full version. Now my question is what can this possibly be and what can I do? I've already written to support.

Pa

I would try the following: log in to the official minecraft site and load the game down again maybe that works…

Sa

I have

Pa

And no "login with minecraft account" appears at the top left?