[BUG] CC using API credits while on Pro plan without prompting

Environment

• Platform (select one):
• [x] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: 1.0.51 (Claude Code)
• Operating System: macOS 15.4.1
• Terminal: iTerm2

Bug Description

<!-- A clear and concise description of the bug -->
I had $20 in unused API credits before getting the Pro plan. I use CC and frequently get the "you've hit the limit, come back later" messages. However, I never once received a prompt to continue using CC using API credits as the docs suggest will happen.

To maintain usage strictly within your Pro or Max Plan allocation: Decline the API credit option when presented

Steps to Reproduce

1. Have API credits
2. Have Pro plan
3. Watch API credits being used without prompting/permission

Expected Behavior

If I am logged in as a Pro user my API credits will not be used without prompting

Actual Behavior

My account was slowly and somewhat randomly using API credits

Additional Context

<!-- Add any other context about the problem here, such as screenshots, logs, etc. -->
The API token used for Claude Code is unused anywhere else, and align perfectly when Claude Code was in use. It's almost as if it's not using the tokens when the Pro plan limit is reached, but randomly deciding some messages should use the API credits? Let me know if there's any way I can help track this down (sending logs, etc).