Hi malakandi !
Yea they are both are different & have no connection with each other, since there earnings methods are completely different. In short, Add grid you earn by clicking on just random box and system shows , give rewards based on your luck.
In golden contest, It's a contest run by admin in adbuxpro website forum, where you have to find the hidden golden egg look like this ( 
Example)
and this can be anywhere in the website, like in PTC ads page, forums in any posts, specific inside tab, do remember that, this egg icon can be anywhere you can think & can be find inside in adbuxpro only remember. Now to win this, your job is to find it ofcourse, it will be not that easy and it can be easy as well, since many of them will try to find it, if you catch with your eye and able to find that secret code, which you need to paste it in coupon code page here--> https://adbuxpro.com/account/coupons/redeem Once redeemed the prices will be reflected instantly to your account.
More information, please read the post carefully -> https://adbuxpro.com/forum/topic/1770-Golden-Egg-Contest-Running
Do reach to our Support team via ticket, for additional any help.
