They have publicity on Tinder and other real dating sites, and they announce a try-out of 3 days for about 1$ /day. Then they select for you an extra package of 27$, and they subcribe you for a full subscription of about 100$/month.
They refused to refund the extra money on the phone saying that I agreed to this scam on their website even if I called them in the following hour. You can't cancel your subscription without calling them. I cancelled my credit card...