A £23m bonus was included in the Brazilian playmaker’s contract following his renewal last year.
While reports from Sky Sports suggest Neymar will lodge a formal complaint against to FIFA over the unpaid money, the governing body refused to comment on whether or not a case had been logged.
A FIFA spokesperson told Sky Sports News: “As a general rule, and without prejudice to the right of any player or club to seek redress before a civil court for employment-related disputes, the decision-making bodies of FIFA would be competent unless the parties have explicitly agreed for such dispute to be decided by an independent arbitration tribunal.”
Barcelona spokesman Josep Vives, meanwhile, explained why Barca have refused to honour the terms of the contract.
He said: “The club will not pay the bonus to Neymar’s father.
“There were three conditions: the player must not negotiate his departure from the club during the month before the bonus became payable, he must demonstrate his desire to fulfil his contract, and that we would not pay out the bonus before September 1, to ensure the transfer window was closed.
“Now that we know that none of these three conditions were met, we will not honour that bonus.”