Originally Posted by drvsafe
Sounds like he is trying to strong arm you. Ask him to prove that you agreed to the additional $40. I have been selling online since '99 and have NEVER shipped until I was paid in full. It's very odd.
I agree and am in the same boat as you. The thing about this situation though that is different from any of my experiences is that the guy sent him the optic first for a trade, then the OP decided he wanted to flat out buy it after getting it.
So technically it was shipped before any cash agreement was ever made
...unless i'm misunderstanding something, OP?