Hello, there seems to be a billing mistake associated with my account.  My app was charged $1 more than it should have.  Could you please explain why this may have happened?
What is the charge for currency exchange? Why is my cash withdrawal not recognised? Why is the exchange rate wrong for my card payment? Why was a fee charged for my card payment? How do I get a spare card? Why was my top-up reverted? What should I do if my phone is lost or stolen? How do I verify my identity? Why am I unable to verify my identity? Why was my transaction charged twice? What is the age limit for using the service? Why is my transfer pending? Which countries are supported? Why is my contactless payment not working? Why is my balance not updated after a bank transfer? Why was my transfer declined? How do I request a refund? How do I top up by cash or cheque? How do I receive money? When will my card arrive? Why is my balance not updated after a cheque or cash deposit? Why is my direct debit payment not recognised? Why did my top-up fail? How do I cancel a transfer? What is the current exchange rate? Why has my transfer not been received by the recipient? How do I get a physical card? Why is my card not accepted? What should I do if my card is lost or stolen? Is ATM support available?