Backed my first Indiegogo project last year and the buttons say you are claiming a perk for that amount now. So Indiegogo has already got around that issue and rubs it's hands clean of having to help it's site users again.
That might be why Indiegogo seem happy to let people use it's platform to fleece customers of their money.
After being five Months late and hardly any updates or communication, the campaign director of the project I backed has only sent a few of the backers the item, even though he now sells the same item on his website which you can buy and get straight away. Obviously he will get more selling them through his website than the original Indiegogo campaign so has decided to sell them there instead of giving them to the backers.
Try getting Indigegogo involved to get some communication or action taken and they just don't want to know. Would not touch Indiegogo with a barge pole in future.
Oh and their whole refund system, does not work. Plenty of people asking for refunds for the same project but because the project is overdue, Indiegogo say you have to get it back from the campaign manager. When the campaign manager refuses to answer any emails about anything, let alone delivery or refunds, Indiegogo do not care will not help in any way whatsoever. If you try and progress things they just don't reply either.
Sham of a company IMO. /Rant