Hi Blakeleysmom!
Hope you're doing well
I understand your concern but I don't think it's anything concerning that's happening.
I've ordered from them before.
They are most likely calling for something simple, such as, not receiving your payment yet.
Keep in mind that if you do a payment abroad, your bank will most likely pause it, until you call them to confirm.
Not because it's ADC, but because banks often automatically tags foreign transactions on a temporary hold, until they have you confirm that it is ok.
I ordered a while ago, and never needed a prescript
ion.
It might be best for you to call them, so you know it's the right number you're communicating with.
A friend of mine was called by a company similar to ADC, and it was indeed to confirm payment not going through.
Good luck!