There is no way to check if the BTC address entered by the user is correct or not.
I entered a random string and it forwarded to the next dialog box prompting to enter my email and displayed LTC address.
What happens in this case if I send LTC to that address but the forwarding BTC address is not correct?
Oh, that's a great catch. Essentially, in this case the order will get stuck, so we'll manually have to release it. I appreciate the time you took into testing it out. We are going to fix it ASAP.