Payments Paused Due to “Usual Activity”

I received a notification saying that my payments are paused due to unusual activity... I'm unsure what this means or what unusual activity was detected. And of course, there’s essentially no way to contact any customer support person through Meta. What a garbage platform for selling. Does anybody have any thoughts on how to resolve this? I’ve sold and shipped hundreds of items through marketplace so a pause on my payments is obviously a bit concerning…