Peterborough have made a formal complaint to the Football League over former player Matthew Etherington's transfer from Spurs to West Ham.
Peterborough argue they are out of pocket over Etherington's move
Manager Barry Fry claims the winger was valued at £500,000 in the £4m transfer which took French striker Frederic Kanoute to White Hart Lane.
If that was the case, Peterborough would receive nothing under the terms of
Etherington's sale to Spurs four years ago - the winger was sold for the same amount in in 1999.
Spurs had agreed to pay Peterborough 15% of any future sale above the original price.
Fry told Peterborough's official website: "I spoke to (Tottenham director of football) David Pleat and he told me the deal was worth £4m of which Matthew was valued at £500,000.
"A week or so before that Matthew was going to Charlton in a £5m deal
with Scott Parker where Matt was valued at £1.5m.
"How on earth has his value gone down that much in just a week? We have made our feelings known and it is up to the governing bodies to sort it out."