I have seen this kind of situation pop up from time to time, and it usually seems to be where someone's email account has changed.
If it is at all possible for you to do, I think you might be best off calling tech support to help get this sorted out.
Otherwise, perhaps you could send a PM to Ryan Munnis or one of the other Cakewalk staff you see here in the forum from time to time, to see if they can help you, if you cannot call tech support for any reason.
I am not sure if you can send a Private Message yet, due to your post count, and if that is the case, and you also cannot call tech support, please indicate that, and I will send them one on your behalf.
Bob Bone