This morning I attempted to book a fare on Delta.com in September from RSW to STL. As i went through my purchase, reviewed and selcted my seats and arrived at the total for all passengers screen it gave me a total fare of $260.80. After entering my credit card information and completing my purchase with that total I went into my emaill and printed my receipt and itinerary that showed a fare and total of $416.80. Immediately i called Delta and spoke to a CSR who had to transfer me to a Delta Web Site specialist in Montego Bay. While on the phone with Delta I replicated the fare numerous times and was treated rudely and as if I did not know how to use a computer and book a fare. Finally she transferred me to a Supervisor in Dallas and again replicated the fare and exact same flights numerous times while on the phone with the supervisor who told me I needed to clear my browser history, my cache and my cookies and he did not know why I was showing that fare. I printed out several times while speaking to the supervisor the trip summary where I was able to select that fare and even took pictures of my monitor screen with my cell phone and offered to fax or email him the information instantly with him advising that he does not have access to email or a fax machine. At that point I was tired of arguing with them and had them cancel my reservation at $416.80. Any suggestions would be greatly appreciated. I am about to say goodbye to DL and take my business elsewhere.