Business ProfileforFort Troff

I had begun to process a sale for merchandise through Fort Troff over the weekend of 12/2/23. The website had advertised a sale with an unknown end date. Unfortunately I didn't process the sale immediately. I had reviewed the amounts discounted and totals at that time and was going to spend $600. When I returned to my mobile device on 12/5 at 2:25 AM, and reloaded the web page, the sale was still present on the merchandise. The percentage amounts off were still there. I processed the sale and to my surprise, even though the amounts were still advertised, they had "ended the sale" and charged me the full amount for each item. I received an order confirmation - EVERY ITEM STILL HAD THE PERCENT OFF ON THE DESCRIPTION. Hours later, I received a SHIPPING CONFIRMATION - EVERY ITEM STILL HAD THE PERCENT OFF ON THE DESCRIPTION. The amounts now have changed to the regular price, and the retailer has told me that I should've checked the final price, but I did over the weekend and I was in agreement with the sale price. When I saw the regular price on the confirmation's I simply thought it was the subtotal before the sale was calculated. Again, ALL OF THE MERCHANDISE still had the percentages off on them in the ***** DESCRIPTION, but they weren't taking the percentages off. Indeed even today when I clicked on the invoice number and linked to their website, the items still show the amount discounted that they should've taken, but took nothing off. They are actively advertising a sale, tricking the customer into selecting the items, and then NOT TAKING THE AMOUNT OFF. I have explained this to the customer service representative and they have refused to budge, even though they are sending me the confirmations with the amounts that should be discounted. I am in awe as to how illogical the company is being and can only describe as fraudulent. I have asked to refund the order and they have refused. They are unwilling to assist in any way.