parking ticket loopholes

[johnnystealth]

Thanks to advice on here, I managed not to pay three parking tickets last year on grounds that the tickets didnt have two dates- Leeds City Council eventually caved in, I didnt have to pay anything and the council changed their tickets. Now I have a new ticket - for parking in a loading bay, on a Sunday, when every business in the street is closed on Sundays Anyone know any more top loopholes or appeal grounds?