Marseille finally secured the return of the France international last night as a £25million move was confirmed.
The Hammers were in negotiations with the Ligue 1 club for large parts of the transfer window once their talisman refused to play.
A switch back to Marseille, who he left for east London in the summer of 2015, was Payet’s desire due to personal and family reasons.
But his lack of respect shown to West Ham, manager Slaven Bilic and his team-mates saw his reputation tarnished at the club.
Dimitri Payet was named West Ham's Player of the Year last season but refused to play this month
The 29-year-old, who enjoyed a hugely impressive first year in England, was given a new contract just last February and paid a £1m loyalty bonus in September.
However, Payet’s decision to boycott playing and force through a return to Marseille has left Sullivan angry midway through the Hammers’ first season at the London Stadium.
“The Club would like to place on record its sincere disappointment that Dimitri Payet did not show the same commitment and respect to West Ham United that the Club and fans showed him, particularly when it rewarded him with a lucrative new five-and-half-year deal only last year,” Sullivan told the club’s official website.
Slaven Bilic revealed Dimitri Payet told him twice he would never play for West Ham again
I would have preferred for [Payet] to have stayed in order to make an example of him
“I would like to make it clear that we have no financial need to sell our best players and that the decision to allow Payet to leave was in accordance with the wishes of the manager and the interests of squad unity.
“To be frank, my Board and I would have preferred for him to have stayed in order to make an example of him, as no player is bigger than the club.”
The Hammers have already moved to land somewhat of a replacement for Payet in the form of Robert Snodgrass from Hull.
Further additions could be made too with a striker targeted, and their pursuit of Brentford’s Scott Hogan remains ongoing.
Twitter reacts as Marseille agree fee with West Ham for Dimitri Payet
Sun, January 29, 2017
Express Sport brings you all the best tweets as Marseille agree a fee to sign West Ham playmaker Dimitri Payet
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Marseille agree a fee to sign West Ham playmaker Dimitri Payet
David Sullivan and David Gold have already spent £18m this month on new West Ham signings
On moving forward, Sullivan added: “I am confident that with the quality of the players we have brought in during January already, the squad will be stronger at the end of this transfer window than it was at the start.
"We now look forward to building on our recent good run of form with five league wins in the last seven matches as we focus on continuing our rise up the Premier League table.”
Up next for 10th-placed West Ham is their clash with Manchester City at the London Stadium on Wednesday (7.45pm), where January signings Snodgrass and Jose Fonte are set to make their debuts.