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Unpredictability of international online card payment is painful. Up until March, most if not all the transaction to Japan were working. Two out of three cards I regularly stopped working on March, and one card still works, except it get flagged at EVERY SINGLE instance of these purchase that I actually have to call the issuer to get it unblocked for transaction. (Doesn't matter where it is, doesn't matter how many times I've made purchase from the same vendor.)

It seems like this is something to do with changes in 3DSecure; what's frustrating so much is that noone can provide me information what's going on, it's simply doesn't work.