Further to my post yesterday, the time claimed for drafting the three virtually identical Notices of Funding was a total of three hours (one hour for each). Did you guess correctly?
Being charitable, I suppose it is possible the fee earner recorded the time as being 1 unit per notice. An inexperienced costs draftsman then misread the corresponding attendance notes as recording 1 hour per notice and failed to engage brain when drafting the bill to consider whether this was remotely realistic. The matter was then passed to a partner who was too busy to give even a cursory glance at the contents of the bill before signing the certificate of accuracy. At no stage was there ever any intention to defraud the defendant.
Other possible explanations are also available.