I couldn't change without penalty, although the email said I could....They really don't have the first idea what they are doing. My production date was originally October (yes, that's 2022 for clarity) and I had to finalise my spec by the end of May. My production date is now some unspecified time in 2023 yet I still can't change spec without penalty / delay and yet people with a November build now are being asked to confirm their final spec. Makes no sense.