Migration Issue

I'm assuming that's not pointed at me, but if it is (at least the last part about paying money to contact Microsoft) you shouldn't need to since going to the link should give you a local number to dial for Belgium. At least that's where you said you were
at the moment?

When you're not able to make the change on the website you'd need to contact phone support, that's the only other way to figure out what's going on with your account, unfortunately.

If you’re moving to another country or region, you might have to change the region associated with your Xbox LIVE account. You can do this by going to the Account migration page (sign-in
required). When you change the region of your Xbox LIVE account, some things are unaffected, like your profile. Other things are potentially affected, such as:

• Memberships and subscriptions
• Licensed digital content (like games, video, and music) that you’ve already bought
  
• Services you get through your Xbox console
• Funds in your Microsoft Account

Note If certain conditions apply, you might be prevented from changing your account’s region.

This page describes what happens when you change the region of your Xbox LIVE account and the reasons why you might not be able to change it.

http://support.xbox.com/en-US/billing-and-subscriptions/account-management/change-region

Ok, so be sure to download all the stuff you have ever bot on your console, and you account is empty of microsoft points. Account migration

Hi, I hope you're doing great out there despite the issue that you're experiencing. I am an Independent advisor and I am here to help you in regard to your concern.

Kindly perform an extended powercycle and reset your network hardware by following the steps below:

1. Unplug the power cable from the back of the router, modem, or gateway for 5 minutes. If you have a router and a modem, unplug the power cable from both devices.

2. Press and hold the Xbox button on your console for 10 seconds or until it turns off then wait for 2 minutes before turning it on again.

3. After 5 minutes, plug the modem or gateway in first, and wait for all the lights to return to their normal state.

4. If you are using a router, plug in the router and wait for all the lights to return to their normal state.

Hello, first it's a pleasure to be able to help you today.

My name is welcome to the community.

Hello Jason, unfortunately in cases like this you really need to remember which email account you used, try checking with friends and family to see if anyone knows or remembers the account you used.

Hi MichaelKowalski3, I hope you're doing great out there despite the issue that you're experiencing. I am an Independent advisor and I am here to help you in regards to your concern.

There are the necessary steps that we need to perform if in case we were asked to re-purchase Minecraft Java Edition after migrating:

1. Please double-check you are logging in to the same Microsoft account you used to migrate your Mojang account.

2. Make sure you are not logging in with your Mojang account. Migrated accounts will only be able to log in with your Microsoft account.

Once confirmed, kindly sign out then restart your PC before signing back in.