Free Best Buy Mobile Phone Accessory YMMV check your email

No idea how ymmv this is, but I received an email from Best Buy about 15 minutres ago with 

a code for a free mobile accessory from a list of nine items.  I got a $30 USB C cable shipped for free.  I tried and the promo code is unique and one time use.  I have bought a phone through Best Buy in the past, so I assume that has something to do with it.  Hope others can get in on this.  

I remember them doing the same thing last year. Hopefully I'll get the email, as well.