The sticker on the box is just so you know they were in there. It is the letter that matters. Same for me with a virtual card, unfortunately.

The published rule and the enforcement pattern are different documents. Only one of them affects you.

Same here.

Same for me with a virtual card, unfortunately.

Photograph everything.

Domain age is one of the few signals that is expensive to fake and free to check. How long have you been on a virtual card?

The cheapest option costs more once you price in the failure rate.

Do you contact the customs office or the carrier first? A fortnight in on a virtual card and it lines up.

What do you do about the fee? Do you just pay it?

The cheapest option costs more once you price in the failure rate.

Written confirmation email after every phone call. Cheapest insurance there is.