Pip underpayment confusion

Blue_since_1981

So I filled in a change of Circumstances in September 2024, had my review in July 2025 and just received my new award going from standard mobility to enhanced daily living. I was told I was due an underpayment of just over 6k and that it had been refused by debt management as I owed nothing to anybody

I then received a call from my claim manager saying that he has decided due to a split decision that although my underpayment says 6387 on the system he will now be changing it to 2136 and not to question why it has dropped by over 4k

He wouldn't go into any detail of what a split decision means or why he's decided to take over 4k off the underpayment I am owed

Has anyone had this happen to them before as I've been left very confused, any advice would be much appreciated

Lauren29

Can you confirm what your award was before you reported a change in circumstances? Which component/s were you receiving then and what you were awarded after the review?

Blue_since_1981

I was receiving standard mobility, then after my review they took away my standard mobility but awarded me enhanced daily living