Maybe there are different currencies available to different countries... when I looked at MoonPay, I got a list of just TEN major currencies that did NOT include Hive...

I do have a Bittrex account, so that makes more sense since Bittrex actually is one of the few exchanges that has a USD/Hive trading pair. But sadly, Bittrex does not support Debit/Credit card deposits in the US (banking laws — only BANKS are supposed to issue "cash advances"), so I'm outta luck, I think.