Mind providing me a bit more information on this matter? I don't think I have ever heard of a players account deleting itself. Did you migrate recently? ^TK
Please complete our request form at msft.it/6016bGt76 so that one of our account specialists can look further into this issue for you. Remember to attach your Transaction ID and your account name/Gamertag. ^FF
Please complete our request form at msft.it/6018bGtxM so that one of our account specialists can look further into this issue for you. Remember to attach your Transaction ID and your account name/Gamertag. ^FF
To keep your information secure, please complete our request form at msft.it/6015bGtaz and one of our account specialists can look further into this issue for you. Remember to attach your Transaction ID and your account name/Gamertag. ^FF
To keep your info secure, please complete our request form at msft.it/6010bGtQp so that one of our account specialists can look further into this issue for you. Remember to attach your Transaction ID and your account name/Gamertag. ^FF
If you're not able to access the account then you will need to reach out to Xbox/Microsoft Support to recover the account if you're not able to access it: msft.it/6011bGtst ^TK
If you're still seeing demo mode in the launcher, then please complete our request form at msft.it/6012bGtoE so that one of our account specialists can look further into this issue for you. Remember to attach your Transaction ID and your account name/Gamertag. ^FF
If you're having any trouble accessing the full game after migrating your account, remember to use the Microsoft login option with the account that you migrated with, and make sure to remove your old Mojang account from the launcher. See our FAQ: msft.it/6013bGtlh. ^FF
This is usually a sign that you're not logging in with the correct credentials if you're getting demo mode. In this case, I would reach out to Xbox Support to recover the account since it is a Microsoft Account at thsi time: msft.it/6018bGtlQ ^TK
Please complete our request form at msft.it/6017bGtiB so that one of our account specialists can look further into this issue for you. Remember to attach your Transaction ID and your account name/Gamertag. ^FF
It sounds like you may have spoken with a game expert. You can request that they escalate your ticket to Minecraft Support so that we can further investigate your account. ^FF
We can send you a bit more info if you submit a ticket up to our player support team! To keep your information secure, please complete our request form at msft.it/6010bGtjG so we can quickly and safely assist with your question! ^TK
To keep your information secure, please complete our request form at msft.it/6017bGtbt so that one of our account specialists can look further into this issue for you. Remember to attach your Transaction ID and your account name/Gamertag. ^FF
Please visit our bug report site to see if the problem has already been reported: msft.it/6014bGtZu. You can upvote if the issue hasn't been resolved. If you think you've found a new bug, visit our help site here on how to submit a report! msft.it/6015bGtZR ^FF
If you're still having any issues with accessing your account/worlds after migration, then please complete our request form at msft.it/6012bGtkQ so that one of our account specialists can look further into this for you. ^FF