[GadgetKen]

You might want to send them an email and let them know they need to renew their web security certificate. Should be relatively easy for them to do.

I'm not as concerned with this on getting the initial complimentary sim card (just got mine by certified mail this morning) because no financial information required for this transaction. However, if they don't fix this, I would be more apt to use a proxy financial service like Paypal rather than directly using a credit card to add additional airtime if my experience with the initial balance is favorable (will be testing it in the Caribbean in a few weeks).