The bid was sent in a letter to Refco's lawyers Wednesday.

FORBES: IBG Makes A Play On Refco's Futures Business

And the former England captain has published a two-page letter outlining the strengths of the 2018 bid.

BBC: Beckham hands over England 2018 World Cup bid

Chief Jerry Yang sent a letter to employees Saturday after Microsoft withdrew its bid for the company, thanking them for persevering.

FORBES: Yang To Employees: 'We Must Redouble Efforts'

"Southeastern has been working hard to secure a better outcome for our clients through a superior offer or a rejection of the current bid, " the investment firm wrote in an April letter to its clients.

WSJ: Dell Director Becomes Middleman in Buyout Battle

After losing his bid for a fourth term in 1989, Mr Koch wrote a letter giving advice to the man who beat him, Mr. Dinkins.

WSJ: Ed Koch Legacy: New York City's Fortunes Improved Under His Leadership

It is a sign of how badly the bid team believe they have been damaged by events of the last month that a letter like this has been sent to Fifa.

BBC: England bid team write to Fifa ahead of 2018 Cup vote

In a recent open letter, the chairman and chief executive said they did not "regret" the failed bid.

BBC: BAE Systems investors call on chairman Olver to go

The live music company has filed a letter of complaint to The Royal Parks raising "serious concerns" about the tender and bid process for the new four-year contract up to 2017.

BBC: Live Nation may end 10-year link with Hyde Park