Bought the game via the launcher, log in into a Microsoft account, it redirected me to the buy page and bought. In the website and in the launcher, i cannot see my activated copy of Java edition and i just see "Play demo" button. 

Whenever i try to go to Purchase again, i get error code

{"success":false,"failedValidations":[\{"name":"CANNOT_BUY_WHAT_IS_OWNED","firstProductName":"minecraft"}

]}