@kittykatty666 I know a few have had orders cancelled for some newer sets because they haven't bought enough previous ones(odd business model), when I've had issues they have always explained what the issue was and worked on solving it.
When it comes to the bank and the fraud attempt I doubt it was related to an actual attempt, I recently had a fraud warning from my bank when I booked a hotel in the city I live, they thought it was unusual based on my spending usage and the fact most people don't use hotels in the city they live, a quick call sorted that out.