Can you buy quartz on Nox?

You can, if you're having issues it's on your end. I know I personally can't use PayPal on there because it always denies my paypal balance regardless of how much money I have (example = I can't buy 1 quartz even with a balance in the $20 range.) However, I bought a google play card with that paypal balance, and the card worked perfectly fine.

is that even safe? wouldn't it be easy to steal your personal info and stuff? I wouldn't trust emulators to be secure.