I stand to believe you are not being too carried away about this bonus offer? Then I might tell you that this update may not be true as thought because I have just visited the site before giving you my own feedback based on your complain
Here is the right link to register there on the stake gosubet https://stake.com/?offer=gosu&tab=register&modal=auth

I tried making a test run if the free bonuses update would be valid but then after proceeding on the registration and trying to sign in it indicates "Error loading" also "invalid credentials".

Reading through the site gosubetting has also made it clear of not responsible for an lost of funds but the feature advices of their sites is literally of fun and not financial advices.

And as you are pleased to know Op, I will urge you to disclaim from it and to stay safe on the digital gambling life, you must not be so eager or only attracted to gambling sites just because it has free betting features as bonuses.