I think it's the difficulty in getting a U.S. stamped envelope to send in. I think you'd have to mail order the postage from the U.S. to your country, then put the postage on the self-addressed envelope, then mail that envelope as international mail to Dreamhost.
Either that or find someone in the US willing to do the postage legwork for you and then just paypal them the money.
In either case, it's seems quite a production!
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