It hasn't done that to me. It's worked according to their docs:

> Copilot Chat uses one premium request per user prompt, multiplied by the model's rate.

> Each prompt to Copilot CLI uses one premium request with the default model. For other models, this is multiplied by the model's rate.

> Copilot coding agent uses one premium request per session, multiplied by the model's rate. A session begins when you ask Copilot to create a pull request or make one or more changes to an existing pull request.

https://docs.github.com/en/copilot/concepts/billing/copilot-...