Hey jaemoon. I’m not entirely sure what you’re asking.
I can tell you that you have bought Pro (4500 credits) and then two additional 500 monthly credit packages (1000 more). So you currently get 5500 credits per month. When you see 5500/5500 credits, that means you have 5500 credits remaining. If it said 5200/5000, that would mean you have 5200 *credits remaining. That confuses some people.
As a pro user, you can also enter your own API key for both Claude & OpenAI models.
Are you saying you are running out of credits? Or your users are running out of credits?