Thanks for this, there was a confirmation screen, please see image below, interesting they advise that this form cannot be used to appeal a parking charge? I guess the keeper does have the evidence needed.
I also sent a follow up message as advised above, kept a screenshot of before/after and emailed to the keeper to get a timestamp.
I also sent a follow up message as advised above, kept a screenshot of before/after and emailed to the keeper to get a timestamp.

