Hi. First off, double-check your output address. If you're copying and pasting from your exchange profile there's always a chance there's a hidden character or two in there invalidating the parsing of the address.
Secondly, the threshold is 0.3 LTC (great move from Coinotron).
Set it and save it.
Wait 2 hours. From what I understand, the whole payout cycle is done together, it's not a case that every used will have to wait 2 hours.
I've had no problems with Coinotron recently.
Well if address is that thing u copy when u click on recive button in wallet then i have put it and saved it too over 1 day ago.