I had a problem with the airport recently (minor one re queues) and i emailed through their web site (
www.londoncityairport.com) Now not sure about you guys but i often wonder if anyone at the end of corporate web sites reads the mail? I have emailed LHR before about problems (30 minute security queue at 05.30 in the morning!!!) and never got a reply. Not only did i get a reply from LCY but they replied with a real person acknowledging my mail within minutes and someone came abck to me the next day with a detailed reply! blew my socks off that did and they have kept my business! so try an email to them and see how they reply.