I hate slow support
I'm so used to replying to emails quickly that I find it personally offensive when others don't do the same.
I have a problem with a 3rd party product today and it has totally put the brakes on a minor release that I wanted to get out the door tomorrow. It's not a huge deal in the grand scheme of things, but it's annoying when I'm literally ready to run the final build script and post the resulting MSI.
Yesterday I emailed them from their web site support form. Today I emailed them directly. Twice.
I've received no reply, but I'm not going to post their name (yet) because who knows? Perhaps their cat died yesterday, or lightning killed their computer. It's worth another day waiting, just in case.
But if I don't get a reply soon, I'm going to fry their ass. 