Blackburn's owners claim Phil Jones' agent - if not the player himself - spoke to Manchester United before being granted permission to do so. Jones moved to Old Trafford on Monday and he will put pen to paper on a five-year deal when he returns from the European Under-21 Championship in Denmark.
But Ewood Park owners Venkys considered making an official complaint to the Premier League over the £20.5million deal, only to back down as they did not want any legal wrangle to hamper Jones' career.
And Jones' agent, John Colquhoun added: "I won't be commenting on the confidential process that was undertaken. Everyone is telling me they're happy with what went on so, unless I hear different and unless I've got questions to answer, I don't feel I have to comment."