To us, Western Union and Paypal are offshore. MonkeyBonkers are based in London, not unlike, most likely, either your bank or insurance company.
You expect every dealer here (are there any US-based replica dealers on this forum?) to deal with your offshore US-based systems to put you at ease, when those very US-based systems are the problem?
You're buying into an offshore hobby, I'm afraid. If you don't trust British banks, you'd best stick to Western Union and pay the surcharge for your security.