Actually, checking these things in advance before you deposit your money can save you the later struggle and potential loss. Having said this though, I find it ridiculous that when you want to deposit a lower amount than the minimum requirement that you don't get an error message, and not allowing you you to do so 
and that instead, if you do make that mistake you lose your money - how frustrating
You are right. But the deposit process will take place initially out of the whitebit exchange. We are using the sender address where the coin/token coming from. This exchage is only receiving... It's their rule and they can't undo if it happens because of its part of their terms and conditions. So use it at your own risk.and that instead, if you do make that mistake you lose your money - how frustrating