Not if they claim that square is a large business (being that all transactions show up as SQUARE xxxxxxx (xx being the french press in this case)
true but someone I know called Amex and they said it'll work. And although you can't really trust what they say seeing that it is actually a small business it should be enough to get the credit posted manually if necessary.
but this is wht they wrote me
AskAmex
At this time we do not think that third party payment vendors (square, paypal) would count, but we are checking for you and will get back
AskAmex
Once I hear something, I will reach out to you. - Rachel
19 minutes ago
now lets say it turns out to be able to do it manually im willing to offer my self as paid by the hour to get back all the 25 credits on all DDFs tht each have 10's of cards each !!!!!!