difficult
Page 24 of the flyer clearly says:
Prices, Policies and Terms
Prices, specifications and availability are subject to change without notice.
Page 24? A little less than up front.
There are a number of things here. 1st, OP is correct to be at least a little steamed. The response, though taking some heat, did give the vendor's number to verify Midway's claim. A lot of times in customer service you don't always have the level of control over a situation you would like and some corporate nincompoop saddles you with a practice or policy which completely hamstrings the C/S rep. It's tough to say if that's all of what happened here, but you can be sure that the C/S guy isn't the guy who markets the products, or gets the flyers sent out.
Imagine if you will this situation. Customer calls ABC reloading and says 'hey, your web ordering thing isn't working, can you help me get this stuff ordered?' C/S: "I can do the order by phone, but another group handles the web site support and I am not authorized to work on it. More importantly, the web site support is only available by email and even I can't get a hold of them by phone. Honestly, I don't even know who they are because they never "sign" their correspondence. Anyway, let me take your order...."
Think that's out of the realm of today's world? Think again.
Now if the C/S guy was quick on his feet so to speak he would have looked at the price vs. advertised ( there's no excuse not to know this since they have such a state of the art system ) and immediately freeze the inventory, and lie to the customer "I apologize Mr. Munk, but we're apparently out of those products". It may have diffused the situation or not, but probably better than the outcome. Of course that's the difficulty of C/S, you never know who's had a bad day, when one of your long time customers will "not get" your sense of humor, or be put off by something.
A good company will respond to "I'm not satisfied with this response. I realize the circumstances but I feel this is unduly punishing me and I want to speak to a supervisor". I suggest giving them the opportunity to take your input and make the process better. Generally, a company willing to listen to my complaint and attempt to make changes, I will decline financial offers unless that is the actual nature of the complaint. IOW, in your case I would decline a reduced price or discount to "make it right" and instead ask that the price disclaimers be more prominent, C/S have more latitude to address these issues immediately, etc. JMHO...
Now, as for the CC theft, totally inexcusable.