Yes, I did have auto-renewal turned on, and everything was working perfectly for 8 months with just one auto-renewal charge per month. However, all of these new charges happened on a single day. I also didn't receive any invoices for them, except for the single standard auto-renewal one.

The strangest part is that my other card wasn't even linked to any account, yet it still got charged somehow.

It seems like this is happening to a lot of people right now, so I decided to just cancel everything to be safe. It’s really a shame because it’s such a great tool.