The HCEO is charging you "interest"

Under section 69 of the County Courts Act 1984 a creditor can apply for interest on the judgment debt.

This is not automatically granted if the creditor does not ask for it. Always ask to see the original judgment (The Form N24).

The interest rate is up to 8% of the sum due until the date the sum is paid.

Check whether you have any county court judgments via Trust Online (fee applies) then telephone the judgment court and ask whether the judgment includes an order for interest.

High Court Enforcement Officers often try to add interest to debts when there is no order allowing for interest to be charged.