Somebody hosted drop game on my account now i have 2days ban and all my byte coins gone 
Dude that’s sad to read , but you need to go to the kukouri support email with this.
There is no speedy reply , it will be days not hours if someone comes back to you.
Also it’s unlikely you’ll get back items you have lost.
As for your problem well the only way that can happen is for another to have your password.
The byte coins can then be traded to another player…
Change your password before world’s are taken
Ye i changed my password and contacted kukouri and i have 2days ban and my worlds are fine i have checked on my other account