If in this thread Fortunejack doesn't provide a promo code, then you can try looking for it in the official telegram group that Fortunejack has because usually the casino will give it to their official telegram group first.
Maybe they forgot to post the promo code in the thread they created.
If we want something that can't be found here, then be a smart gambler by looking for all the information elsewhere so you can get what you want faster.
That way you can also become a gambler who has a lot of insight.