Hello,
Cakewalk can't deliver the help you need in our user forum. If you've tried several times without success, you'll need to call Cakewalk Customer Service in order to pay with that particular credit card. Using a different card, or PayPal are viable alternatives for some.
Cakewalk CS is available by phone between 1 PM - 6 PM Eastern Time Monday through Friday 1-888-CAKEWALK, international callers use +1 617.423.9004
Problems like you describe are very rare, but they do occur. They're usually related to a communication issue between our gateway and your issuing bank. The 'declined' message usually indicates a specific condition test is failing. Aside from the obvious reasons, there are many obscure reasons that have popped up over the years. Examples:
* Some banks deny purchases when currency conversion is required.
* Some banks demand you enter your billing address exactly as it's found on your billing statement.
* For various reasons many folks try to shop in our USD eStore and pay with credit cards with EU billing addresses. Some banks decline these transaction.
If we could flick a switch and get your order through, we would do it. But instead you'll need to call Cakewalk Customer Service.