They actually do allow you to mention it in marketing; I've worked with them for a consumer product. What you can't do is use it in "paid" marketing.
Emails, social media posts, website landing pages, collateral in-store/retail is all fully acceptable. You can also pay additional fees to them for additional materials to use in communications.
Emails, social media posts, website landing pages, collateral in-store/retail is all fully acceptable. You can also pay additional fees to them for additional materials to use in communications.