Don't buy from builders warehouse

My Builders Warehouse online shopping experience was a horrible because first they delivered goods that I did not order. Secondly they try to make it SIM like I had ordered those goods then on their website they had an item for a certain place but then try to sell it to me for a different price luckily I took a screenshot of the of the page before they could change it. They changed it afterwards. Eventually I got the correct goods but they did not want to give me my invoice I as I write this review I haven't received my invoice I have spoken to three different call center agents and none of them are helping.