So our users can test our service without using valuable cryptocurrency we have enabled Litecoin in Testnet mode with ticker LTCT. It is important to remember that LTCT has no real value, so you should only enable it for testing purposes and disable it for production use. You can request LTCT via a button on your wallet page, towards the bottom. (You may need to view all coins to see it.)
More information can be found here: https://www.coinpayments.net/help-testnet