I can log in but it says I didn´t buy the Game

Good evening, I can log in on minecraft but it says I didn´t buy the Game once the game loads and it goes to the to pick multiplayer or to play alone, this was after I migrated from mohjang to Microsoft . I played it once after migration but now it says I didn´t purchase the game. I have picked the migration cape on my profile. I don´t know what else to do.

The game was a gift so I only have a few e-mails on my e-mail account, but none with receipt.

Please help me solve this issue.