$50 eGift Card with 1 month On-Star Trial [YMMV?]

Received an e-mail from On-Star and will be trying it when I get out to my car today. Says it's a unique code, but I doubt it, though you and your vehicle may have to be targeted (hence the YMMV in the title).

HOW TO REDEEM YOUR TRIAL AND PICK YOUR PERFECT HOLIDAY GIFT.

PUSH YOUR BLUE ONSTAR BUTTON
Activate your free trial with an Advisor in one easy step. You can even start using some services right away.

USE PROMO CODE: PRESENT50
Give the Advisor your unique promo code so they'll know that you're eligible for the eGift card.

CHOOSE FROM SELECT RETAILERS
Soon after you activate — keep an eye on your email. We'll send a link where you can choose your preferred retailer, including Target, Amazon, Starbucks and dozens more.

ENJOY YOUR $50 eGIFT CARD
Enjoy a happier, safer and more connected holiday season with our services. Plus, have fun shopping with your eGift card.

Gift Card Offer Terms: Must activate the OnStar and connected services trial by 12/31/19. One (1) eGift card per household, per trial activated. Allow up to 4 weeks for processing and receipt of offer code with instructions on how to redeem. May not be combined with other OnStar or connected services offers or retroactively applied.
The merchants represented are not sponsors of the rewards or otherwise affiliated with OnStar.