Fees requested within 30 days of billing.
i.e Single issue: £800 - £1200 including 2-3 hours researching, preparation & writing report (£200/hr).
The length of a report is not the determinant on its pedigree, e.g. double spacing doubles the number of pages. Furthermore distillation of large amounts of reading into a concise opinion can be the outcome of a lot of work or “due diligence” on my part.