Drove an hour for a deal, to find out their was a price discrepancy

Initial deal was 1520 rounds 7.62x39 for $200 with 7% sales tax.
I called them to say I'll take it and hold the item for a couple of hours so I could get there.
They never bothered to call me while I drove there over an hour away. Once I get there they said there was a problem. They said they didnt call because they figured i wanted it anyways. They said they made a mistake with the listing for some reason. I accepted the appolgy but i stil have to leave a fair feedback for odt members. They did not hold their word on the initial deal. They reduced the amount of ammo to $200 for 1280 rounds. Then I purchased the rest of the ammo for a higher price per round than agreed upon. Paid $252.52 out the door instead of $214 for the 1520 rounds.