Edgars Cyber Monday false adverti*****t

I am so disappointed with Edgars. I tried to purchase something which was 50% off and after so many unsuccessful attempts to add it to my cart, it was finally added. I struggled a lot to checkout as I kept receiving an error to say it out of stock or qty not available. How so because it was advertised as available! I kept trying thinking it was an issue because it was a busy day. I finally stopped because I was not getting any luck. To my surprise, on the following day, I receive emails for me to continue with the checkout of what in my cart. Now I am able to get to the checkout screen now that the price is back to normal, now they have stock however it was said that it out of stock while at half price! One could conclude that Edgars does false adverti*****t on sales. Such a waste of time and internet!