My Microsoft account was hacked and deleted. I had all my games in that account.

You can try the account recovery form here Help with the Microsoft account recovery form - Microsoft Support

I have a new account because the microsoft deleted the hacked account but after it got deleted i still had minecraft bedrock

the hacked manage to delete the email i use for that microsoft account and changed his/her email as primary email,
and also hacker manage to remove my phone number from the account also.

so how can i prove its my account when hacker manage to delete my email use for the microsoft account and change all the my profile info??

The problem I'm facing is my Microsoft account got deleted and cannot be recovered for some reason, I wanted to get back my minecraft account in my hacked Microsoft account.

I had my Microsoft account hacked and products/games like Minecraft merged to a different account before they deleted my Microsoft account linked to this email. I have all of the original information regarding my Minecraft account before I had migrated it with Microsoft (creation date, TID, access to original email, date of migration to THIS email, gamertag). I have been in contact with Minecraft Support and Microsoft Support and they both are redirecting me to either one so it's been a bit like ping pong.

This account I am trying to recover is my deceased sister's so its of utmost importance that I try everything at hand to get it back.

Thanks,

Emma