Dishonest

I ordered online two 12 packs of bully beef it was on promo the add clearly shows the price and quantity, when I picked up my order I was told I only get two tins as it was an error I spoke to the store manager who didn't have any remorse for the inconvenience they have caused I mean really he tells me he can't give me what I ordered I give him my picture of my order clearly showing what I was supposed to recieved he tells me he will come back to takes my email and number never comes back what type of business is this I definitely won't support them again.