As a general rule, ah (and bol.com) do not accept credit cards (or debit cards that need to go through the credit card network). This can be independently verified on Google Maps if you look for those 1-star reviews.

There are a small handful ah branches (see below) in tourist spots that does accept credit cards. In all other places, you should see posters apparently made by the staff that puts red crosses on Visa, MasterCard and AMEX logos near the entrance and/or the checkout kassa.

From https://www.ah.nl/klantenservice/onze-winkels/zelfscannen-en... (in Dutch):

> In sommige winkels kan je met je creditcard of buitenlandse pre-paid debetkaart betalen: de winkels op Schiphol, veel stationswinkels, de winkel achter het paleis op de Dam in Amsterdam en de winkel aan de Weteringschans in Amsterdam. Bij alle andere winkels kan dit niet.