Maybe I can help shed some light?
Here's what I got when I bought my presale bundle:
Thank you for pre-ordering an exclusive Katy Perry Prism bundle!
Below is your code to access ticket pre-sales for the upcoming tour! Please note - Codes are subject to locations yet to be announced - There is no guarantee that Katy will perform a concert in your area. Stay tuned for tour announcements.
So I have a feeling that this means that the code might work for ALL presales, maybe even the Citi one.
Additionally, I received a direct email from Bravado stating that the presale began on the 21st, not the 23rd. I can only assume they were talking about the presale concerning the bundle.
That information came to me as a reply to me asking when and where the presale would happen. They did not tell me where that presale would be.
Anyone think I should email now? They probably won't get back to me in a day.