Not received 3 months code promo

I used a 3 month prepaid code and still have not received my promo code.

Hey Wingnut120987,

Please keep an eye on your Xbox Live messages for more information regarding the code.

Have a great night!

I signed up for a 3-month subscription on June 15, 2018, which indicated a promo would apply where I would receive a code for an additional 3-months. The code was never sent. I checked my email and my messages on Xbox. It was never sent. Customer Service
told me to post here to receive help.

The promo stated:

Buy 3 months, get 3 free

Purchase a 3-month Gold membership and receive a code for an additional 3 months delivered to your email address within 10 business days.

Offer valid from 9:00PM PST on June 6, 2018 to 11:59 PM PST on June 17, 2018, while supplies last. Available only in Microsoft online store in the United States (including Puerto Rico) and Canada. Offer valid for 3 month Xbox Live Subscription. After
your purchase, you'll receive a digital code at the email address associated with your purchase within 10 business days of promotion end date. Code must be redeemed by August 31, 2018. No reproduction of codes will be accepted.

Hey there -

From the Terms of Service for that promotion:

During the first 30 days, customer will receive a promo code for 3 months of Groove Music Pass at no charge. Upon completion of the promotional period, membership will be automatically
billed as specified at signup unless cancelled. Limit 1 promo code per customer, single use only, Promo code must be used by December 29th, 2016.

Do note that when you receive a code there IS an expiration date. If you haven't received your code after 30 days of membership, feel free to post up a new thread and we'll look into it.

Thanks!

it was a buy 1 month get 3 months free promo but never got a code for my free 3 months