Thank you so much Sidewinder for your advice to ignore these letters. We have just received a demand for payment from DeVere who want £100 for forgetting to display our permit although they must have seen our car complete with its permit many times over the 18 months we have owned it. Seems somewhat excessive for a momentary lapse! I was reluctant to follow the advice to ignore the letter completely until I read your succinct and considered post. We shall not now respond to these people in any way and if they wish to pursue the matter then we look forward to our day in court. Regards LindsayR