Didn't receive promotional download code for Forza 7

I bought an Alienware 15 R3 model that specifically was eligible for a free digital copy of the Forza 7 Motorsport video game.  Upon, order completion and delivery I never received such code nor was it on the itemized invoice.

I've been in contact with Order support and Customer Care support for 2 weeks now and spoke to about 6 different reps.  Each individual kept advising me totally separate excuses as to why I didn't receive the code.  I even submitted a screencap of the Dell website showing that particular model and the promo link and they still haven't gotten back to me. 

I don't know where else to turn but at this point in juncture I think I would like open a case with BBB.  I'm open to suggestions and solutions but I know that this isn't the right way to treat a good customer. 

Thanks to anyone who responds.