Really mature Samantha. Also, I really love the little snarky email you sent me! It really does show your true character.

At this point, you've already made my Bad Guy list based on your shady and immature actions in this thread so there's really no need to play into your little trolling behavior.
Well which is it now? Did he profit $625 or $1250? He just paid you $175 so if you in fact paid the $1250 like you said you did instead of the $800, why wouldn't you be demanding $1075 since it's clear to me that you want a full refund?
AND, just to throw some more math out there for you, IF you did pay him the full amount, he has already paid you $175 so that minus the $625 NON-REFUNDABLE DEPOSIT is only $450. And that's IF you paid him in full [It's a little shady to me to be consistent with one payment method and then for the "payment in question" do a completely different type of transaction, but hey, that's just my own red flags going up] you wouldn't be asking for a $625 refund, you would be asking for a $450 refund.
There is something inconsistent with your story and the fact that you talk in circles, avoid direct answering of simple questions and just your general attitude just put a bad taste in my mouth.