Working customer service/tech support myself, I can tell you that proclaiming that you're a paying customer and that you expect better service because of this is only going to have one result if any... it will push your ticket down to the bottom of the inbox.
Expecting good support is one thing. Demanding higher priority because you pay is something completely different. Seriously, everyone should be required to work tech support or some sort of customer service job so they understand what it's like, and how to talk to staff the right way to make them sincerely WANT to help you.
And even though it should be obvious, I'm sure I should also point out that I'm not an employee of Curse or affiliated with the company in any other way.