I started over and i must have signed carvalho around 10 times already according to the messages and have not paid any transfer fee for any of the players iv signed.
I've had similar issues (though usually with Zouma). I'm going to wait a few days before playing it again as it seems like it's going to be updated daily so the save file will be overwritten anyway. Hopefully by the end of next week those kinds of issues will be gone.