Jenson Button's manager, Richard Goddard has hit out at Brawn Grand Prix and the Brackley-based outfit's failure to agree new terms with the Englishman for 2010.

Button, who won the 2009 F1 drivers' title in Brazil last Sunday, took a pay-cut last winter to enable the team to stay afloat in the wake of Honda's sudden and shock withdrawal from competition.

He now wants his retainer restored to around ?8 million, but it is believed he is being offered barely a third of that.

"Brawn could have sorted Jenson out weeks ago and none of this [all the speculation of who he will be driving for in 2010] would be going on," Goddard told British broadsheet newspaper, The Guardian. "We've been trying to agree terms with them.

"He's made it clear he wants to stay and, had they agreed a contract, there would be no speculation.

"People will speculate that anyone with a free seat next year will be offering Jenson a drive. That speculation won't die until Brawn offer him new terms.

"He has displayed his great talent in a good car this year. A lot of quality seats may still be available, so it's down to Brawn to make us an offer."

F1 boss, Bernie Ecclestone meanwhile is less than impressed with Brawn GP's shenanigans.

"They are being a little bit arrogant considering how long they have been in F1," Ecclestone added. "They should remember they have only been in the sport 10 minutes, really."

Whilst Button has been linked to both McLaren-Mercedes and Toyota in recent days though, Mercedes boss, Norbert Haug has said that it is unlikely the Woking-based outfit would want an all-British driver line-up in 2010.

"There are no current negotiations with Jenson Button," Haug stated. "But I do understand that people in England are dreaming of an English team with two world champions in the cockpits. However, dreams do not always come true."