I received a call from 312-334-2419 last night (Jan 18 at 8:32 PM). I just missed the call so I called back. When I did, I received a message that the number had been disconnected. (??) I called number again again tonight and it was the Harris Theater - I got voice mail. I left a message not to call unless they needed something or had something to say or to tell me that I have won something! I had attended two performances in the past 30 days, so I guess I am on their list.
The Harris Theater presents some fantastic artists and the tickets are affordable mostly due to some very generous donations. I made a small donation. Maybe they wanted to say thank you or more money. Either way, for a business to call in the evening and not leave a message is tacky. Especially if they were soliciting for donations! . . . But I won't ever know because they didn't leave a message!
I think this is Harris Theater at Millenium Park. They've been calling me as well. I also just told them I was tight on money and very busy and wouldn't be attending anything for a while, yet they continue to call!
Thanks for deciphering the mystery. It will now register on my phone appropriately, and will be handled with the proper priority or lack thereof -- depending on the day/circumstances.