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Striker
It's a bit late to do that when you've already handed over the money man, use your brain!
You hand over the money and they either give you a certificate or details that you can check online if it has been secured. They are liable to pay upto two times the deposit amount if they don't put it in a scheme.
I appreciate that doesn't help you now but your daughter could have/should have checked at the time.
So it's quite clear you don't have to pay by credit card if you use your brain!