What goes wrong when you apply
The primary issue is a fundamental mismatch between your company's profile and the automated, low-touch onboarding systems of most modern banks and EMIs. Institutions like Mercury, Wise, and Revolut are built for high-volume, low-risk domestic businesses. A Cayman Islands entity immediately flags their systems. The application is either auto-rejected or escalated to a junior compliance analyst who lacks the training to assess an international structure. They see a 'high-risk' jurisdiction and a lack of physical presence, and the default answer is 'no'.
You might provide a comprehensive business plan, director CVs, and source of funds documentation, but it rarely gets a proper review. The bank's risk framework is simply not designed to accommodate you. Mainstream corporate banks like HSBC or JPMorgan are equally difficult. Unless your business has a substantial, tangible link to a country where they have a major presence—like significant local staff, operations, or turnover—they have no commercial or regulatory incentive to take on the perceived compliance burden of a Cayman entity. The outcome is a series of polite but firm rejections, leaving you with a perfectly good company that cannot send or receive money.