I hadn’t received the Phase 4 unlock for the training club, so I sent in a ticket. Here was the response from support.
“Sorry for the unlocks not happening on the day they were supposed to! One of our team members are going through and manually unlocking all the items for those who have completed the L’etape Workouts. As this process is being done manually, it may take some time and we can’t give a time frame that it might be done by. We are working to have these unlocked as soon as possible. Thank you for your understanding and patience, and we’re sorry for any worries this has caused.”
So, if you haven’t yet received the unlocks, it looks like it will take some time. This has been a very disappointing training club. I hope that the Zwift Team has learned something so that this does not repeat in future training clubs.