https://www.gov.uk/government/organisat ... -different
Mandatory reconsiderations and appeals are different
We can’t treat a complaint as a challenge to a benefit decision (a request for ‘mandatory reconsideration’) or an appeal against a benefit decision, overpayment decision, child maintenance assessment or sanction.
Read about how to request a mandatory reconsideration of a benefits decision.
You can’t appeal to the Social Security and Child Support Tribunal about a benefits decision until you get a response to your mandatory reconsideration request. This is called a ‘mandatory reconsideration notice’. You can appeal to the tribunal if you think the decision in the mandatory reconsideration notice is wrong.
I would still highlight your situation to your local MP.
This is what the Government need to know.