Load & Go Card help required please

Hi folks,

I have received a message from a buyer saying they have a Load and Go card and asking how to use it to pay for an order.

As I've never had one myself, nor been asked previously how to use one, I'm at a total loss as to what to advise - all I've suggested so far is that they could possibly transfer funds to their PayPal account or perhaps my bank account ?  I really have no idea, so any help would be greatly appreciated . . . . . . . . . . .   thanks in advance