Well, last time we helped someone get in contact with Katy or close to Katy was here: http://katyperryforum.com/index.php?topic=15081.0
I told the lady this info:
CAA / Creative Artists Agency
Agency Relationship: Exclusive
2000 Avenue of the Stars
Los Angeles, CA 90067 United States
Responsible Agent: Jbeau Lewis
Direct Phone: 424-288-2000
Direct Management Group Inc.
947 North La Cienega Boulevard Suite G
Los Angeles, CA 90069 United States
Responsible Manager: Bradford Cobb
Direct Phone: 310-854-3535
1750 North Vine Street
Los Angeles, CA 90028 United States
I think she contacted Direct Management.
All this is assuming her story was true, which I think it was. She did post pics of the result.
If you aren't able to get any response from Direct Management, twitter is a good way, though I wouldn't recommend it since you don't want your fiancee finding out.
I'm working on getting meet and greet tickets for her next tour, and assuming I do get them, I'll try to remember and see if I can't get her to do the congrats and upload it here, no guarantees so don't get excited over me saying that. I still have to get the tickets first. Maybe some other katycats that do get Meet and Greet tickets can try to do the same.