I've lived in the EU and all over the US. I've yet to see a loan where there isn't a clause allowing them to collect the entire loan under certain conditions, or even, in some cases, for any reason. Would you loan a bunch of money to someone if you couldn't say "sorry, you lied to me and I want my money back" or "you've missed 8 payments in a row, I want the remainder now and if you don't have it, we'll go to court?"

Check your loan agreement, I'm fairly confident there are ways for them to collect the full amount immediately.