There is no reason why you shouldn't send a copy of your DLA appeal letter when claiming your PIP, but be aware that there is no guarantee that it will be taken into consideration. Doubtless you will be sending other supportive evidence, just include it in with this.
We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.