I payed for minecraft but cant use

Have you tried to install the launcher through the Xbox app, Microsoft Store or download directly from the Mojang website?

There is also an issue on the Xbox network that is preventing users from opening their games on all platforms.

Could you download launchers via Microsoft Store app or Xbox app?
Also check that your PC's region matches the region you live in. You can check this at settings>time and language>region

i cant even install the launcher it either gives error codes or freezes before starting

I'm Samy an independent advisor. Welcome to the Xbox community. How are you?

These steps can help you, give it a try.

Check for updates on Windows Update, update everything including optional/additional updates.

1. Logout from Xbox app, Microsoft Store app and logout/remove your account from your launcher too

2. Look for the Xbox app and Microsoft Store app in the Windows menu, right-click, click app settings and then click terminate, restore and reset. Do this with the launcher too.

3. Clear the store cache type ''wsreset'' in the Windows bar, run as admin, and wait for the screen to close and open the store automatically.

4. Open the Microsoft Store app, click on the 3 dots in the upper right corner>downloads updates>get updates and update everything.

5. Restart your PC, log into the Microsoft Store, log into the Xbox app, log into the launcher and see if that solves the problem.

Make sure you are logging into the launcher with the account you purchased the game from. If you have migrated your account to Microsoft, you will need to log in with your Microsoft account on the launcher.

That won't help.him he is in the SEA expansion regions which are pc only