False Advertising

I received an email from Adidas regarding a sale they were running for 30% off so I clicked on the link and found three pairs of shoes on sale that I liked, but when I tried to check out the discount code could not be app****. I proceeded to email Adidas and they came back a day later saying that not everything was on sale and that I should click on a link they provided in the email to show me what was on sale. I did and all three pairs of shoes that I wanted were still on sale but the discount code still does not work. This is clearly false advertising to try and draw customers in and drive sales.