Thank you very much for that, I'll use that picture I checked again today and the sign is still missing. I am going to challenge it on that basis, then. It is a long road, and the sign is missing where I parked, and the next nearest sign is for resident permits.
If i am using the missing sign as a reason, what do i select in the challenge options, is this 'impropriety' on the council's part, miscellaneous, or another reason?