I wanted to delete my old oppo id account, and to do that I’ll need to login into it, but I don’t know the password.

Password reset requires saying when the account was created (month and year) and “tech support” can’t help here either.

Is it legal to block / hide account deletion behind login in European countries? GDPR (and polish RODO) both talk about a right to data deletion, which in this case, I believe, isn’t respected.