You should have waited 45 days before initiating the transfer
Note that it’s the Registry (not the Registrar) that controls this, and the same thing would happen if you had transferred the domain to any other registrar. And in this situation, ICANN rules say that the losing/old registrar is the one to issue a refund… and not the gaining/new registrar.
Of course, you should wait to hear the official word from Cloudflare Registrar support.