A sneaky scam I've seen a few times now:
Someone writes into support to demand a refund for a duplicate charge.
"oh crap!"
But their email is nowhere in my system, nor is their name...
The sketchy link, a Google Sites page, shows a fake captcha checkbox.
And it copies a terminal command into your clipboard.
And then: "to better prove you're not a robot, open a terminal and hit paste, enter"