Pool Deals Switched products and refused refund Internet

 I ordered a pool ladder for our new above ground pool we purchased to teach our girls how to swim.  The ladder I ordered was an A-frame ladder with a platform at the top.  The platform was the sole reason I went for this ladder as one of my girls is disabled. 

The ladder arrived quickly, but was the wrong one.  The one I received was the same manufacturer and an A-frame, but no platform. 

I called customer service and after waiting for 5 minutes I got someone on the phone who asked me who the manufacturer was and after telling her she said "Oh you need to speak with X" and quickly transferred me to a voice mail.  I hung up and called back.  After waiting in que again, I got hung up on.  I called back a third time and spoke with the same girl as the first time and explained that I was not interested in speaking with someones voice mail.  She then put me on hold for 6 minutes and then said that she needed me to e-mail her a picture of the box for the warehouse to research this and she would get back with me.  This was on 5/30 and I promptly sent the picture in an e-mail. 

I then received and e-mail on 5/31 asking me if the platform was in the box and I replied no.  On 6/5 I sent an e-mail asking for an update on what is being done to correct my order.  On 6/10 I sent another e-mail asking for an update again since hearing nothing back from the first I sent.  On 6/10 I received the following reply from Corrine; "Yes it was resolved, this is the new updated ladder, the ladder with the platform they do not make anymore."  On 6/10 I sent a reply asking what I needed to do to return the ladder for a refund as it is not what I ordered and was more money than the ladder they sold from the same manufacturer without a platform.  On 6/12 I received an e-mail from Corrine that simply stated "All sales are final".  No apology or anything.  I think it is absolute B.S. that you order one product and they send you something else and tell you tuff.  Horrible service, very rude.  Stay Away!