The Independent Appeals Service provides the ability for people who have received a Parking Charge Notice to appeal against it.
The IAS is a certified Alternative Dispute Resolution entity. You may use this service if you have been advised by a parking operator that they will engage with it. If you consider that you should be able to use the service but are unable to; please contact the operator that issued the charge to you who will be able to advise you.
Please also refer to the Can I Appeal
The 2015/2016 IAS Annual Activity Report is available here