Thanks.
I have today appealed on behalf of the registered keeper with the wording supplied
We have received notification of rejection of appeal..
OP, only the RK could appeal the NTK (to the creditor) and 'we' cannot receive a reply, only the RK can.
OP, I'm just reinforcing the point that you aren't liable for anything as regards the parking charge, this rests with the RK.
As long as they're in the loop and know the prospective financial liability which they face, fine.