I tried a few times and it first said "Address mismatch" followed by "Invalid card". Anyway, I use this card everyday to buy things from all over the world and it never causes any problems.
The other option is to use my Luxembourg cc card but you don't have that country listed and I fear that it's going to cause additional issues because of the different shipping address.
Maestro doesn't seem to be supported and PayPal is completely out of the question (I'd rather throw the money out of a window than perform a transaction with them).
This leaves us with the following option: phone call (quick and easy), western union (a bit of hassle) or international transfer (slow).
PS: You really need to work on that shopping cart. The experience from an International perspective is less than premium for what should be a premium checkout experience.
Ironically we have to agree with you regarding PayPal - we hate PayPal, for all sorts of reasons. We still offer it, although only to international customers, since Authorize.net (our credit card processing gateway) has a low success rate with non-north American bank/credit cards.
I'm afraid calling us on the tele will not make the credit card be approved - over the telephone we would be entering the same information into the same automated system that already declined your transaction. (In other words there's nothing magical we can do to fool the system)
I agree with you - a prepaid card will probably not do any better, since the prepaid cards over in your part of the world are surely issued by UK or European banks - when we've already established the fact that our processing gateway Authorize.net has very low success rate with any bank/credit/gift/prepaid cards from non-North American routes.
And I do have to agree with you, Authorize.net has a proven track record of not accepting non-North American cards. Unfortunately, I am but a small business, and Authorize.net is the leading processing gateway in North America. They give the best deal and were willing to work with small businesses, which is a lot more than I can say for some other credit card processing gateways who charge huge fees for low-volume customers.
Unfortunately that leaves PayPal as the last resort :-( (and the usual form of payment for non-North American customers trying to buy Viking products). A lot of people around the world specifically request PayPal as their first preferred payment source (ironic to me, considering how much I personally hate PayPal and try to avoid using it) because they are under the misguided belief that PayPal is actually there to protect customers from buyers and vice versa. In reality, PayPal is there to take a cut of every transaction, and they could care less what happens to the seller or buyer. Last time I checked, PayPal wasn't considered a "bank" in the USA and therefore is not required to follow all of the same rules.
I really am terribly sorry that we don't have better European and UK systems for accepting payments. There's really no payment system offered in the U.S. that will help improve our success rate with Euro cards. I can only assume it goes back to the big banks in the US system not wanting funds to leave this country. Remember, banks in the USA have free-roam and don't have to follow any rules. The banks own the system here along with the rich lobbiests and the corrupt congressmen and senators. Or maybe simply American banks are ignorant and don't think they need to accept money from other countries.
Inversely, my credit cards would probably work at UK shopping sites. I guess that's why the GBP has always had the highest value of any currency! lol