Sorry for the late reply.
I'm still willing to get a 0.5 btc loan.
So, I should first send 245KNC to KUsj3UaZ6kYCEFNhkLrPmtcqS6QxhDizjZ right?
Is the address still valid?
Yes that is the address. Just keep in mind the below conditions for altcoin collateral.
Additional terms for altcoin collateral
A. If the collateral value goes below 115%, you will be informed of the drop and you have 3 options:
1. Wait
2. Repay loan and collateral will be returned
3. Send more collateral to return collateral value to 120%
B. Autoselling of the collateral will start at 107% of the loan amount.
Ok I've sent 245KNC to your address. It should arrive there soon