All you can do it keep pestering them and phoning them, even though takes them ages to answer there bloody phones, keep at it, once you go for your medical have a notepad with you dates you last drank alcohol, doctors names and any other people they may want to speak to and contact details if not then thats another delay, and I suppose when you get there be polite to them and hope they do the decent thing in sending your form away the same day, TRUST ME I'm a stress head and the full process a was pulling my hair out, be careful when you get your license back when you buy a car, do all the proper checks, timing belt, check starter motor, battery, and so on I hope everything works out for you buddy