In pursuing Parking Provision for Motorhomes and promoting overnight stopping places I have contacted every county and district council in the UK, Motorway Services providers and Major service station providers. Some failed to acknowledge and took more than two attempts, even using Freedom of Information legislation to get a reply.
Parish councils do not have the infrastructure of the larger councils, so rely on a clerk or the councillor to act on their behalf. Do not expect a speedy outcome but persistence can actually get you somewhere.
Graham Hadfield (Motorhome Parking Website) with tell you the same.
A first reply may be dismissive, but put your points over and attempt to continue the dialogue. You may even get a face to face meeting, however you then need people to follow through, not just be keyboard warriors.
John Thompson (former Motorhome Tourism Organisation)