GoFundMe "buckled to demands" when they took down Israel Folau's fundraising page, a spokesperson for the player says.
He also revealed Folau's website has been the target of a cyber attack.
Folau had raised almost $NZ700,000 after issuing a plea for financial support for his legal battle with Rugby Australia (RA) after his contract was terminated for posting anti-gay messages to social media.
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But the popular crowd-funding website shut the page down on Monday, saying it violates its terms of service. All donors will be fully refunded.
"We are absolutely committed to the fight for equality for LGBTIQ+ people and fostering an environment of inclusivity," the company said in a statement.
A spokesperson for Folau told the Sydney Morning Herald his camp believed the campaign was in line with GoFundMe's terms of service.
"The decision of GoFundMe to cancel Israel’s fundraising campaign to support his Legal Action Fund is very disappointing."
"Unfortunately, GoFundMe has buckled to demands against the freedom of Australians to donate to his cause," the spokesperson told the Sydney Morning Herald.
"There appears to be a continuing campaign of discrimination against Israel and his supporters."
He also added Folau's website had been the target of a cyber-hacking attempt and his wife Maria had been attacked for supporting her husband.