West Ham vice-chair Karren Brady has told The Sun the Championship club are still waiting for Italian outfit Brescia to pay any of the fees for former striker Alessandro Diamanti.
Brady claims the Serie B club will owe the Hammers instalments worth around £1.5million from the August 2010 deal.
"Chasing your money in Europe is hard work," she said. "£450,000 has been due for so long we've been in touch with the Italian federation and FIFA to impose some kind of sanction, but the money still isn't immediately forthcoming.
"Another million plus is due next week and there's still no sign of the first payment. FIFA have done nothing more than yawn.