Hi Colin, The Easton Promise was a joint affair between BBN and Werrington Joggers last year. BBN have decided not to run the event this year and have handed it over to Werrington Joggers so it is their responsibility. You will need to email them at the following address.
chairman@werringtonjoggers.co.uk. His name is Tim Cook
They do have a website but it is a domain holding name till their website gets completed. Hope this helps. If that doesn't help come back and I'll see if I can get another contact for you