You're also not going to win with Xsolla because of our policies and they are also inline with Indiegogo's. I'd also recommend NOT charging back either.
Let me quote exactly what would happen.
Xsolla is used by Twitch and EFT and many other places. Doing a chargeback mean you get blacklisted by Xsolla and it’s very hard to get off that list(I’ve been here btw).
Indiegogo would do the same.