More funds are being spent than used via the API

I had over $6 in my balance a few days ago, and I spent $1.64 via the API in the last month. Where did the rest of my money go?

Follow this link for the line item “credit grants” for individual payments, where the first figure is the remaining amount:

https://platform.openai.com/settings/organization/billing/credit-grants

See if there isn’t one that became recently “expired” at the start of the month by being over one year since the payment.