Biometrics given for a previous application (like a study or visit visa) are only valid for a limited window (10 years generally, but tied to specific triggers such as passing your medical exam within the required timeframe). Receiving a request letter asking you to pay a biometric fee — even without a separate biometric instruction letter — usually means new biometrics are required for this application.
What group members advised:- You likely have to give biometrics again. Pay the requested fee, and IRCC will then send an instruction letter with your appointment details.
- Timing matters. In this case, the requirement was tied to how quickly the applicant submitted after their medical exam — submitting a couple of days earlier could have avoided the new biometrics requirement, since it would have fallen within the still-valid window.
If you're unsure whether your existing biometrics are still valid for your current application, don't assume they carry over automatically — check your application status and be prepared to pay the fee and attend a new biometrics appointment if requested.