I visited the website and I didn't see the promo you're talking about. Maybe you can share your chats with the support or the page where you get the offer for their earn product?
I'm sure it's an external offering outside the platform, like a referral system. You know, referrers will use the most attractive offers possible to get readers interested even if it has to be unreasonable. One example on this review site (go to "Coinchange $40" section), http
s://suedeinvesting.com/referrals-main