Thanks - that's very interesting!
Looks like you bought the cards yourself. That makes it unlikely that there was a chargeback on any card I think right unless you had a payment issue somewhere along the line?
Regardless, given the relatively large activity on the account I'm surprised the human or algo isn't able to figure this out.
Gift card + chargeback + international IP + small / quiet account = reasonable flag.
But you don't have chargeback or payment failure it doesn't sound like and account isn't that small - so super super interesting!