This same issue happened in my council, so what happened is on their forms their is an email that you can email in the district council depending on who you are with,( i assume other district councils will possibly have the same system) You just inform them of the situation, and tell them what company if you have that information, in our case they didn't actually do anything other than get the whole council to re-write their forms, and the clerk took full responsibility for it. But despite it saying it's a criminal offence i'm guessing it's at the discretion of the district council as to what actions they take. There is also a system in our district where you can report a specific council member..tho i wasn't too comfortable about the suggestion of giving my phone number to the person i was complaining about.