They should still be under quarantee, if not I have just had the same problem with my GHD, and I contacted Martin who said he should be able to fix them, I posted them to him on Monday and they were back with me on Saturday morning, he gave me a price before he went ahead and fixed them (which was very reasonable). He is highly recommended by me, you can contact him at www.ghdrepairs.co.uk, just let him know that Maria- Jasmine1306 (Ebay) gave you his details.
Maria
August 2006