Hi Shelie
If you apply for a change of circumstances, you can apply for a mandatory and an appeal after you turn state pension age.
When you do not get the result you are hoping for, always contact DWP and ask for a copy of the assessors report called a PA4, this is what the decision maker uses when they make their decision, check for any errors or omissions.
Gary
Nothing on this board constitutes legal advice - always consult a professional about specific problems