That is why now I am emailing them to ask for a more personalized bonus.
In all honestly, why would they offer you a customized bonus? If you aren't a highroller and VIP player, I doubt you will get preferential treatment in many other crypto casinos either. They could have said no in a better way, but their silence tells you everything you need to know. If you want a greater variety of bonuses, maybe it's best to look for a different casino. But judging by what you wrote earlier, you aren't interested in the standard deposit bonuses with strict rules and high wagering requirements, so I don't think you will have much luck in getting your way.
Yeah those customized thing is usual to offer or will be granted to their highrollers. Its rare to see low ballers will get accepted on their request.
But since they are silent towards those request he made, maybe Bspin didn't approve those thing he want to happen.
If he want to pursue what he want, maybe he could get it on other casino and I think its more practical to explore since maybe there are casinos out here will grant his request. But yeah usual for casino to stick with their bonuses offer and those high wagering requirements since this is much sustainable to them.