yeah, ebays become like that aye.. they know u wont pay more $ for it so they just up the price of the postage!!

ask him to give u feedback, then bend him over

Isnt it a bit late to whinge about the postage though? Obviously it was never going to really cost $30 to ship, but you still payed it.
So just dont bother with the feefback, or leave it till the last day you can do it, which is 3 months I think, and hopfully by the time he notices, it will be too late.