Cannot activate CafeCommerce account

Good afternoon

I recently started a second CafeCommerce store but unable to activate it.

I know this may be a DreamHost matter, but I've also let them know and hope maybe together you can resolve it.

Basically, when trying to activate, the message comes up:
"There was an error processing your CafeCommerce activation. The credit card you entered was declined by the processor."

Now I know my card is okay, in fact it's the one I already use for my first CafeCommerce account from which DreamHost take regular payments. I've also used my card recently for cash withdrawals and shop transactions with no problem. I've called my bank and they also can see no problems with the card. It does not therefore make sense for this message to come back.

The only thing I can think of is that the payment 'processor' can already see my card has a DreamHost account with a "CafeCommerce Subscription" (which is not site specific) and must compute that it is a duplication of something already in existence and so does not take the process further.

I may be wrong but I'm absolutely stumped as to an answer, and so are DreamHost at the moment.

As a last ditch resort, I'm looking to close down my first CafeCommerce site so to remove the subscription from the DreamHost account, and then try to activate the second CafeCommerce site soon thereafter.

Please help if you can!

Thanks