My guess would be that the code may not work anymore.
Ha! I forgot about the endless “anybody got one of them free codes” thread.
TrainerRoad is offering a new program for new customers since December 29, 2021. It’s a 30-day money-back guarantee:
Hahaha! I found my original card from when I bought my first trainer (Cycleops PowerBeam Pro - which I LOVED and only got rid of when TR stopped supporting it) awhile ago and have kept it for old time’s sake.