TY... Will be taking a look at correcting this shortly!
They've had this "error" for as long as they've been in business.
Notice the quotations around "error."

This will not be corrected shortly.
In fact, I'm guessing that this issue will take weeks to fix, all the while pocketing your extra money.
I don't recall ever seeing any other casino use these shady tactics to skim money from their players.
This is a nice little strategy Bitcoinrush has going and it's about time someone called them out.
Let's see how "shortly" this gets fixed.
In the meantime, I'd avoid this shady operation like the plague it is.
There's a polite way to say this and an offensive way. You have higher chances of getting results with the polite way. The strategy you used puts bitcoinrush on their back foot, forcing them into a reactionary stance rather than a progressive stance. I would suggest that you pay attention to this fact, if you want those around you to appreciate what you have to say. That being said, I would appreciate it if bitcoinrush put the rounding issue at the forefront of their agenda. It has been a long time since I've noticed the issue as well.