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Why did my credit card work fine on deviantART before, but not now?
There are quite a few reasons why this may be happening. However most of the time this is caused by the fact that you have moved or are in some way attempting to make the purchase from a different location. Our Fraud Assessment System takes into account location and distances to make a decision as to accept a transaction or not.
If you encounter this problem on a reoccurring basis, you should contact email@example.com.