My minecraft account changed to another microsoft account on its own

I have a semi-similar problem. I bought Minecraft Java edition under my dad’s Microsoft account a little over a year ago which was also being sold with Bedrock as a package. I also have a Microsoft account which only has Bedrock edition. Recently, however, my accounts have been mixed up. The account which only has Bedrock now has access to both Bedrock and Java. The account which has access to both now only has Bedrock installed. The account which ISN’T supposed have Java, which somehow does now, now has my same list of single player worlds and multiplayer worlds. My single player worlds have all my save points and items in tact. On the other hand, because it is under a different account, servers detect it as such. Meaning I have lost all my items, advancements, statistics, etc. Countless hours of progress with my friend lost on my end. The account MEANT to have Java now asks me to buy Java again. I now cannot access my old account with my stuff and irreplaceable items and cannot use my original username. I have no clue how this happened.

Hi, Teaiori my name is Oskayra and I would be happy to help.
it is a sad thing to lose your 7 years but lets try fix the problem. Microsoft does not officially support transferring Minecraft accounts between different Microsoft accounts. However, there are a few unofficial methods that you can try to transfer your Minecraft account to your new email address.

Method 1: Contacting Mojang Support

Contact Mojang Support and explain your situation. They may be able to help you transfer your Minecraft account to your new email address.

Website:

Visit the Mojang Support page: https://help.minecraft.net/">https://help.minecraft.net/
Click on the "Contact Us" button.
Select the appropriate category for your issue.
Fill out the required information and submit your request

Be prepared to provide proof of ownership of your Minecraft account, such as your original purchase receipt or any other relevant information.

Method 2: Manually Transferring Game Data

Locate your Minecraft save files and game data. This data is typically stored in the following locations:

Windows: C:\Users<username>\AppData\Roaming.minecraft
macOS: ~/Library/Application Support/minecraft
Copy your Minecraft save files and game data to the corresponding folder on your new Microsoft account.

Launch Minecraft on your new Microsoft account. Minecraft should automatically detect your saved game data.

Please note that these methods are not officially supported by Microsoft or Mojang, and there is no guarantee that they will be successful. It is always recommended to back up your Minecraft save files before attempting any data transfer.

If you are unable to transfer your Minecraft account or game data using the methods above, you may need to repurchase the game with your new Microsoft account.
remember that the methods I present to you are not official from mojang or microsoft in case they do not work, please contact mojang support and explain your case with the email I will provide you again.

https://help.minecraft.net/

we are gamers like you, we just want to help you let me know if your issue has been fixed. Have a nice day.
Oskayra

Perhaps its another account, or a friends account which owns Minecraft, instead of you. I would contact Microsoft Technical Support.

my microsoft account isnt the problem, its my minecraft. my microsoft account is telling me i dont own minecraft and telling me to buy it when i used this exact email and gamertag before. i dont know what happened to the minecraft account but i was hoping to get it linked back to my microsoft account

Perhaps its another account, or a friends account which owns Minecraft, instead of you.

I am the only person who has an account on this xbox.