If your Examiner knew that you were intending to fly your MEP revalidation proficiency check, then he took your money under false pretences, in my opinion. It is indeed abundantly clear that a mandatory proficiency check is required for MEP revalidation, but that very same flight will count as your SEP 'dual training flight' so long as it's at least an hour AND you have done your 12 hours (of which 6 PIC and 12 T/O and landings).
Examiners have absolutely no excuse for claiming not to know this - we've all had a reminder recently from the CAA. If the same FE is going to do your MEP revalidation, I suggest you ask for the fee to be waived in view of your unneccesary SEP revalidation proficiency check!
[ 31 July 2001: Message edited by: BEagle ]