Have you tried using eQSL? The link is
www.eqsl.cc, I use it as well as LOTW. I have one account for my home QTH and a different account for the camp QTH in Freedom, NH (N1ORK/P). Some people have multiple accounts for all the places they've been to. It's alot cheaper and faster than regular QSLs, although the paper cards are usually nicer. May be worth a try to check them out.
73
Andy - N1ORK/P (now portable in NH)