Walmart.com Walmart, Walmart online services Never order from them online Arkansas Internet

I drove three hours to the nearest Walmart on Black Friday to buy a Samsung Galaxy S5 that was listed as being on sale for $139.  The store told me I could only get that price online.  I went three hours back home and tried to order it online.  They put the order through, then cancelled.  I tried 12 more times to order the phone over the next three days and it was cancelled each time.  I could not locate a number to call anyone to try to find out why.  The email they sent to me just said  "Your order has been cancelled, please check to make sure your address, credit card information and phone number are correct".  By the time I got the phone number it was Monday.  I called when I had a chance (I am a teacher and can't make phone calls when students are in the room) and it was about 3:30pm pst before I got through to someone.  He told me he saw what the problem was, to wait 30 minutes and go in and order it again.  I waited the 30 minutes and when I went to order it, there were no more at the sale price!  I have been calling for the last three days trying to get some solution and was finally told this am that they won't honor the sale price even though it was their system that would not allow me to order it.  NEVER  shopping with Walmart again.  I am also returning the $400 computer I bought....this is just plain wrong.