In case you missed it (and I quote):
“From 1 April 2017, the fees for applying to register lasting powers of attorney (LPA) and enduring powers of attorney (EPA) reduce from £110 to £82, with the fee for resubmitting an LPA for registration reducing from £55 to £41.”
https://www.gov.uk/government/news/lasting-and-enduring-power-of-attorney-fees-are-changing
If you have overpaid, then you will get a refund.
Paul Davidoff
Moon Beever