No credits left while we only used 177 (of 750)

First, I suggest signing off and in again. Every so often that helps. Trying a private/incognito connection could also be a temporary solution. Moreover, using a different computer and a different network (mobile) may be of help to isolate the troublemaker. Just to be clear, except for the first, they are only temporary solutions for helping to point out the problem.

If that does not work, I recommend to you to contact Adobe customer care. If you have a Teams contract, contacting customer care is best done via the admin console (needs to be done by an administrator).

If you have an individual contract, follow the instructions here: Adobe customer care can be contacted by beginning a secure chat session at https://helpx.adobe.com/contact.html?rghtup=autoOpen. Pop-up blockers need to be disabled! If the chat window fails to open, or is non-responsive, use a different device to start the interaction.
Support phone numbers may be found here: https://helpx.adobe.com/contact/phone.html. Please note that phone charges may apply.

(see also here: https://community.adobe.com/t5/creative-cloud-services/how-to-contact-adobe-support/td-p/11875703 or here
https://community.adobe.com/t5/account-payment-plan/how-to-contact-adobe-support/td-p/11843852)