Did i got scammed ?

Hello sythe mods
i sold mw3 key to amitz ( his profile : http://sythe.org/member.php?u=236661 ) .
My store thread : http://sythe.org/showthread.php?t=1270880

As u can see in my store : i wrote offer me for mw3 key
but he offered me for 1$ .i think you noe its impossible to sell it for 1$ right ? he has lots of vouches and posts so i did go first with him . i forget asking him for the price before sending the key .
please take a look in the screenshot .









yeah i know that was my fault becoz i forgot asking him for the price . i think you knoe that Noone will sell mw3 key for 1$ right ? i told he can send me 20$ instead of 30$ . its for my epic fault .


please help me out

 

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