Billing issue with my OpenAI API account

Hi, I’m having a billing issue with my OpenAI API account and I’d like some help.

I manually added credit twice:

  • $5 in September

  • $5 in November

However, when I check my account now, my balance only shows $5.

My total usage is less than 200 tokens, so I don’t think I’ve spent anywhere near $5, let alone $10. I’m just wondering: where did the other $5 go?

Could someone please help me understand what might have happened to the missing credit, or how I can check a detailed billing history to verify this?

Thank you!