Hey Simrsnuggles,
Welcome to the Community,
This is very strange. Can you tell me if you are trying to send this payment from your home computer? If you are currently traveling or using a new computer, your payment attempts could be getting rejected by our internal security system.
My best advice for you would be to try using your home computer and if possible try clearing your cache & cookies and then try this again on a different browser.
Please let us know how it goes.
David.
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