Quoted from ForceFlow:You will not receive an automate response for the preorder lists. However, there should be a general email address on the contact page if you really want to double check to make sure they received it.
And if you send them an email at that address to verify whether you are - or are not - on the list they never answer.. At least they never seem to answer mine.
Of course I understand they are busy and may not have the time or wish to spend the time on the no doubt countless emails they receive regarding this subject, but it would be nice to know that YES you are on the list. Seems to me they could simply publish this info on their page somewhere so you could double check.