We have done that three times, When we did the medical we also re did the bio-metrics. I have paid for it 3 times now. I have emailed them with proofs yet we received instructions once again to do the Bio Metrics and the VAC is closed.Hi, this has happened before to other people i remember, its an error from them. Just send them your biometric number and application number applicant name uding webform and if possible attach a snapshot of the gckey . Tell them you already done it last year.
They will relook at your file and will move on to the next step. Thats good news for you guys. Good luck