Bodybuilding.com Failed to deliver an order, banned me from the site Internet

I ordered a $100+ 10LB bag of protein from bodybuilding.com on 12/02/13  (Order #1731907589).  I have probably ordered $500+ dollaras worth of supplements per year in several orders per year over the last 5 years and usually I would receive the order within a week so when I did not I followed up with customer service on 12/11/13.  The customer service representative ("Evan") told me the order had been delivered.  I said it had not and asked what could be done.  He said he would file a claim. 

I told him I am out of protein and asked if I could have a second bag delivered, offering to pay for the second bag and not receive a refund on the first if it could be located and delievered to me.  He said he would not do this and provided no other solution. I said I did not think it was fair to have charged me for something I did not receive and I said that if the claim was not promptly processed I would address the charge with the credit card company. He responded that I am banned from the website for life and stopped chatting. I believe the entire chat session did not last more than about two minutes. 

Mistakes obviously happen, but if my order was never processed and my money was taken, that is unethical.  Beyond that, I am surprised that a customer service representative would show absolutely no interest in keeping a regular customer and instantly deny my proposed solution, offer no alternatives, and ban me when I expressed displeasure, even if he did not agree with me.  This shows me that this company does not care about and probably even disrespects its customers as chumps.  I'm surprised they would run their company this way.