Ask for the manager on the day you get the app. Each day of the week is a different place. 5 days with one visit each day. Telephone won’t cut it in this environment. Show your persistence and ask for a manager each time. It will work and you will be proud that it worked so fast.
Yep...nothing beats face-to-face meetings. And a handshake. I guess I’m old-fashioned.
Know what the prospective organization does. Know their product line. If you honestly love it, that can’t hurt.