WFI Tomorrow

I have my first wfi tomorrow! After 12 year of receiving IB I have been placed in the wrag group. I have requested a mandatory reconsideration but surprise,surprise I haven't heard anything yet. Except that I phone the DWP to find out if I would receive my Notice successful or not before my wfi, they said that it was in "I was waiting to be written" stage and should receive a response next week. However my mandatory reconsideration ask them to look at the difficulties I would have attending the interviews, my mobility and mental conditions the effects of Ataxia and peripheral neuropathy from Central Pointine Myelinosis.
My feet are particularly bad today and Iam dreading the pain that going to the jobcentre will incur tomorrow. If I call to deferrer my appointment tomorrow because of these problems will I be sanctioned. Help!

If you phone tomorrow and explain your mobility issues and that you are requesting an MR they may postpone the appointment or offer to conduct the appointment over the phone. However this is at their discretion, they may insist you attend and they can sanction you for non-attendance.