Hello. As you can see, some offers got some huge hot deals for crystals but what if we look closer into it? 

Seeing screenshots 1-3 you can figure that this game offers 6 bundles and each can provide x2 amount of crystals if purchased for the 1st time or after a big update. After that, bundles provide a considerably smaller bonus. The Eldorado offers, by logic, correspond to game bundles as:  
60=60  
300+30=330  
980+110=1090  
1980+260=2240  
3280+600=3880  
6480+1600=8080  
16k-24k-32k-80k are 2-3-4-10 bundles stacked and so on.

Following this logic, the customer expects to get their bonus or x2 bonus if they have one of course.

What sellers abuse? As you can see on the last screenshot, they simply deny your right to get the bonus xD Alright, what if you used all your bonuses leaving them nothing to abuse? Usually, they simply cancel your order for interesting reasons and having customers move onto next honest seller since they can't get unreasonably high profit from spending YOUR x2 bonuses. What they actually need to sell you 8080 is not buying 6480+1600/6480+6480 bundle but just buying 3280+3280 and 980+980 for which they already spend 35% less money than other sellers. 

Share your opinion in the comments. Do you consider this selling strategy legit and honest? Do Eldorado team consider this reputable for their market? Do sellers enjoy this way of competition?

Your opinion on sellers abusing Genshin Crystals listing on Eldorado market, get around half of what you buy