https://www.slab.org.uk/guidance/opinion-on-appeals/
This is a fee which can be:
Where you elect to charge a different fee we recommend that you should have regard to rates from Tables of Fees which have been reviewed to reflect modern court practices and procedures, such as those under Schedule 2 of the Criminal Fees Regulations, which helpfully provide benchmark rates for a publicly funded legal aid service which can reasonably be applied in contempt of court proceedings.
Otherwise, you must justify the fee with reference to the factors in schedule 2, paragraph 3, that the fee is reasonable having regard to the particular complexity or difficulty of the work or any other particular circumstances.
A short concise and focused narrative in support of the charge should be sufficient.
Where we are not satisfied that the fee claimed is reasonable based on the information available, we will allow what we consider to be a reasonable fee and invite you to provide further information in support of the claim.