Background of the issue:
I am trying to add credits on my page but lost 16000 credits. I have only 1 page registered as production. The site is under development.
Symptoms:
Lost 16000 credits after adding and removing a production site. Cannot find the credits anymore.
Questions:
Can you check if there is an unassigned webpage with credits?
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.
I added the 16k credits back to your WPML.org account, and you should see them here: http://wpml.org/account/