LOL - I too googled and I didn't find any info on a Labletter website either - I did see the same exact post as the 1st post on craiglist.org though

--- Um - as far as the call being legit - I can't answer that, as
Labletter hasn't answered my initial questions... The one thing I notice is that there is no fee associated with sending in submissions - so... Could very well be legit - Feel free to contact the poster via email or PM....
JAcquii.