I'm sorry to hear that you are going through this, and I'm here to help you resolve it.
Those credits probably got stuck.
So, please let me explain why I think this situation with the credits might be happening.
When you initially install and set up WPML, an automatic translation account ID is created.
If you uninstall/reset WPML or reinstall/set WordPress from scratch, a new automatic translation account ID will be generated, and the credits will remain in the old account.
So, I was able to find two separate automatic translation accounts (one created a few months ago and one last month). I moved the credits to the correct account now, and you should see them on the site.
Please let me know if you can see them on the site now.