Suica or any other value stored card, requires cash to load.

Once it is loaded with value, sure, you can put it in iPhone as payment card.  But the load as far as I know, must be by Cash, not by CC.

我希望他们允许用信用卡向 Suica 充值，但不行，只能使用现金。香港的八达通卡也一样.

同意用Suica买火车票等，很方便。