Majkel-payments

[deep wyvern]

how do you know the customer paid that? Nothing on our side indicates we did anything except charge them 40euro.

my guess is their bank charged them some sort of transaction fee

either way this is a question our support team would be better placed to help you with as it's not about the API. https://support.stripe.com/email

to be clear I'm quite confident we did not charge that amount