While the fee was undisclosed at the time of the transfer in August, Paul Duffen, Hull's outgoing chairman, told the clubs that the deal was valued at only £4 million.
Related ArticlesBurnley 2 Hull City 0Jewell waits in wings to rescue HullHull have real problemsBrown 'one defeat from sack' at HullPhil Brown: Hull players are behind meSport on televisionBut Hull are reported to have turned down offers of £6 million for the 25 year-old, and estimates on the size of the deal are as high as £12m.
Adam Pearson, Hull's new chairman, would not speak to journalists last night after the game at Turf Moor that had been billed as manager Phil Brown's last chance to save his job.
The Premier League are examining the discrepancy over Turner's move, which also has implications in terms of VAT and transfer levies. It is a further blow for Hull after the club was exposed as having serious financial problems.
Auditors have warned that they would be around £23 million in debt if they were relegated, a growing prospect after the Burnley result.