Play Airlines - Cancellation Policy

Hello, have a book tripped to iceland in a few days with a friend. We have the same booking number. Unfortunately he fell ill and will not be able to go and is going to try to get refund with a doctors note.

I’m however not ill and just want to go solo since this opportunity is rare for me. If he cancels does that mean my plane ticket is cancelled as well too? I was really hoping to go

Thank you!