I think you guys are missing the point.
I have gone in and made the changes but it is already too late. The payment went through already for the whole year under the wrong currency because it is not clearly stated what currency the pricing is in. I could have done any currency, i just needed to know which currency it was. So i used the wrong card. It is a sign up issue that can be simply resolved by adding the currency designation next to the price / or an info box that says what currency is being charged.
It is water under the bridge for me now but hoping for your future customers that they get this clarity at some point.