I do not believe I was speeding, can I appeal?
As the driver, you have the right at any time to ask for the matter to be heard in court who can consider all of the available evidence and decide whether they are guilty or not. If it is decided that you are guilty, additional court costs will normally be ordered.
When considering whether you were the speeding driver you may also want to think about the class of vehicle you were driving. For example, different speed limits often apply to goods and passenger vehicles which are usually subject to lower speed limits on certain roads.