Hi! Others have noted this too but you can't seem to buy credits right now, it says "This page couldn’t load" in a custom error page when you've selected the amount and click continue to checkout. Congrats on launching such a cool project that's getting people excited, thinking and discussing :)
Hey Gajesh! I sent you an email with some of the teething problems I ran into trying to get started as a provider. Hope it didn't end up in your spam folder!