Had a small amount of money going missing when using the international payment service Payoneer. It was only £35 but wrote to their customer services. Their answer was absolutely terrible. They couldn't understand English and started giving answers to questions I hadn't asked, it was an impossible conversation, like pushing water up hill. Quick Google says others are having the same problem, they are US based and looks like they don't have an ombudsman service like we have here. Scary. So off I trot to Trustpilot.com and leave them a review saying what happened. Not 30 minutes later, a proper English speaking agent contacts me and immediately resolves all my problems. Still won't be using them again, the lack of Ombudsman service means I'd be completely at their mercy if a larger amount of money was to go missing.