I'm sorry that you find yourself in this position. If you have a look at the Guide to PIP Appeals (page 33), benefitsandwork.co.uk/guides-for-claimants/pip, it will tell you the next stage, which is to ask for a copy of the Statement of Reasons, which you need to do within one month of your Appeal decision letter. It's important to understand why you were turned down and what you think your chances of success are to overturn the decision. This can be a lengthy process, and you might want to see if you can get any support from the welfare services in your area. advicelocal.uk/
BIS
Nothing on this board constitutes legal advice - always consult a professional about specific problems