For whatever the worth - they have always been as quiqck as they can to solve issues with the store and purchases, because it is their revenue source, and they want it to function smoothly. Happy customers are I would imagine seen as more likely to return for additional purchases over time, and they DO want long-term customers. Also, a store getting a bad reputation for problems with buying things online is potentially quite damaging to any business, so they try to fix things rapidly.
It is a bit difficult for things that happen over the weekend, but if you contact them first thing Monday, they will do their best to fix whatever needs to be fixed. They JUST did it for me last weekend, where 4 purchases I had made didn't show as going through, even though the charges to my bank account did. I called the company that actually does the store purchase processing for Cakewalk, and they fixed it within a couple of minutes. AND, had I looked closer I would have seen that they are available by phone for some number of hours on both Saturday and Sunday.
Hang in there - they will get you squared away - give them a call Monday, or if the issue might be resolved through that processing company, they DO have hours TODAY where you can call them.
Bob Bone