yup. did it by myself and the company denied any knowledge. then i started to threaten them with the financial ombudsman and they coughed up (did it for my parents). i wouldn't use a company as you will get less money back and you can retain control over the process. it really is very easy. to start the ball rolling, have a good butchers at this website - i followed their instructions and my parents got over 20k back. good luck x