These were people I had no knowledge of, from an outfit I didn't know existed.
The email headers revealed spam account activity, so I simply decided to ignore everything. My bank accounts have been untouched.
Years ago, I thought I'd try PayPal, but it didn't work for me, so that was that. It was billed to a card that has long been closed. So as far as I am concerned, this is a non-issue.
In fact, I don't know how they got my email addy. I think I was using a different email address when I tried to join.
I'll just keep an eye on things.
That's the extent of my experience with crypto.
CA....