Invalid Username or Password

Dear mojang, I had time to play minecraft, but there was a certain problem, when you go to the launcher, the launcher forgets about the existence of my account. When you enter data, and the data is entered correctly, the launcher returns an error, as if the password or email address was entered Incorrectly. I have already contacted you several times with this problem, but nothing has changed, even though the launcher has been updated many times. Give me a direct link to the solution to this problem, your Discord, and so on, will not help in any way. Why do I give almost 2 thousand rubles (Yes, I live in Russia) for a not-yet-ready launcher