FYI this is from last year (my guess is that this years will follow similar timing)

Just received an email from a course in Lansing, MI about the promotion.

Order 3 dozen Pro V1, Pro V1x or AVX at regular price ($49.99/dz) and the 4th matching dozen is FREE!!!

Please call or email with the specifics of your order and we'll have them waiting for your Spring play.
Ball Type: Pro V1 OR Pro V1x OR AVX
Personalization: Maximum 3 lines of text with 17 characters per line
Play #s: Regular #s (1-4) High #s (5-8) All the same # (00, 1-9, 10-99) for an additional $1 per dozen. Note: All yellow golf balls and white AVX are available in #1-4 only
As a premier account, our orders can be placed as early as March 5, 2020 instead of March 19 but the deadline to place your order is April 19, 2020. Please call with your order immediately and we will place it as soon as the ordering window opens. Thank you as always for your support and we look forward to another outstanding season at Golf & Banquet Center.

Oh man! I literally just ordered 3 dozen...I would have waited if I knew!!! Darn

For Canadians like me, the event runs from From March 29 to April 29. Here's the Canadian link: www.titleist.ca/loyalty-rewarded