Value My Banknotes. Grade my Banknotes

I took delivery of notes won at auction. The Auction House is well-known amongst Banknote Collectors. Two single UNC notes are shy of the grading. One is EF as there is clear fold and corner crease and the other has a fold that has been ‘pressed out’. I find it hard to accept how these have not been picked up by putative ‘experts’. I always grade strictly according to IBNS guidelines, Anyone who buys a note from me can have confidence the value of the note and the grading, are spot on.