text: Like the old saying goes: if it seems too good to be true, it probably is. A Melbourne based couple learnt this the hard way after a crowdfunding page they launched received a baffling pledge for over $2 billion. Within an hour, the momentous donation to a kangaroo preservation project launched by ecologists Euan Ritchie and Jen Martin had vanished, and they still haven’t been able to track down the would-be benefactor. Scroll down for video . Euan Ritchie and Jen Martin's crowdfunding page they launched received a baffling pledge for over $2 billion . ‘My initial reaction was shock and disbelief,’ Euan Ritchie told Daily Mail Australia. ‘I was very sceptical but a big part of me wanted to believe it was real.’ The couple decided to make the page after Indigenous tribes from the Northern Territory told them kangaroos from the region were disappearing at an alarming rate. ‘The importance of the mission is absolutely critical. Australia has the highest extinction rate for native mammals, and if we don’t act now we will lose many more.’ The couple launched the crowdfunding page in a bid to track the numbers of kangaroos in the area . In the last 200 years, Australia has lost over 10% of its native mammals, the highest loss of native mammals of any country in the world over that period. The couple launched the crowdfunding page in a bid to track the numbers of kangaroos in the area, and within two days they received the mystifying pledge from someone called Jeffrey Green. ‘I contacted Pozible and started researching online, and within an hour the pledge disappeared. It was very strange and I still don’t understand.’ Mr Ritchie was shocked when the crowdfunding page received a baffling pledge for over $2 billion . Pozible cancelled the payment because it was deemed suspicious, cancelling the account of Jeffrey Green. The website has since attempted to track down the mystery pledger but to no avail. ‘We still have no idea who would pull this prank on us. They even claimed the maximum prize, a $2000 wildlife spotting day in cairns.’ Despite the incident, the couple hope to reach the $15,000 goal. The couple still hope to reach their goal of $15,000 to their kangaroo preservation project .
target: A Melbourne based conservationist couple launched a crowd-funding page .
  Within two days they received a $2 billion pledge which later disappeared .
  The site cancelled the pledge because it was deemed suspicious .
  The baffled couple still haven't tracked down the would-be benefactor .