I have been trying to get my trainer set up. Today was the first day I tried to ride, but it only allowed me 25km. I have a Strava Premium so i thought I get December free.
Yes, that is correct. As a Strava Premium member you can Zwift free until Dec 31st. Try disconnecting and reconnecting your Strava account. This usually resolves the problem, but if issues persist submit a support request and we’ll sort you out.