Last week Parker’s promoter, Duco’s David Higgins, said he and Joshua’s promoter, Eddie Hearn, were in negotiations for a unification bout between the two title holders.
Parker is the WBO heavyweight champion while Joshua holds the IBF, WBA and IBO titles.
Higgins told UK Sky Sports that he received such a low offer from Hearn this week that he’s willing to walk away from negotiations.
“I got this weird email from Eddie’s email address, but he must have been hacked,” Higgins said. “He made the most ridiculously low offer. It could have been the most insulting offer in boxing history.
“To expect 40 per cent is actually quite reasonable, because you have earned it, and it’s a unification.
“Of course I have mentioned it [to Joseph Parker] and he just laughed like I did.
“I’m not going to reply, because I don’t think it was Eddie Hearn. I reckon someone hacked his account, it was a scam. I reckon Eddie respects boxing and I reckon Anthony Joshua wouldn’t want to insult Joseph Parker.”
Higgins is also talking to several promoters in China, Russia, America and Australia about other possible bouts.
Included in those conversations is American WBC champion Deontay Wilder and undefeated Australian hard man Lucas Browne.