Your exchange rate was off.  I was charged extra on my payment that I made last Saturday.
How do I verify the source of my funds? Why did my transfer fail? Why is my refund not showing up? What should I do if my card is about to expire? Why is my transfer pending? Which fiat currencies are supported? How do I edit my personal details? Why was a fee charged for my transfer? How do I get a virtual card? What should I do if I forgot my passcode? How do I get a spare card? How do I activate my card? Why is my contactless payment not working? Why is my balance not updated after a bank transfer? What is automatic top-up? What are the limits for disposable cards? Why is my card payment not recognised? What are the top-up limits? What is the timing for transfers? How do I get a physical card? What should I do if my phone is lost or stolen? What is the charge for topping up by bank transfer? How do I verify my top-up? Why is my balance not updated after a cheque or cash deposit? How do I link my card? How do I change my PIN? Why is my top-up pending? When will my card arrive? Which cards and currencies are supported? Is ATM support available?