Hello,
I have the exact same problem. On November 20 th I tried to upgrade my basic account to Limewire pro and got a payment declined notification thinking that I might have missed something I proceeded with the transaction one more time and got the same transaction declined notification. Subsequently I called my bank to find out whether there was any problem with my card, only to find out that, the transactions were completed on both attempts. Now for the past week I have been trying to contact someone/anyone at limewire but there is no email addres or telephone number for support and my email address is not appearing as approved email so I am not even being able to access the pro support forum. I am really surprised by such a poor level of service.