Cyber Monday cancellation

<p>I placed an order on Monday 28 November 2016 under the RJ tap that had a 50% sale on clothing, at the time there was stock and i placed the order as soon as i could. Today ( Wednesday 30 November 2016) i got a email from TFG that my one item has been cancelled which was confusing seeing that the item was in stock on Monday. I asked the Manager of the online department why couldnt they first phone me too arrange another way of getting me a item before they cancelled it? i went online and they had a jeans but in a bigger size they could have replaced it with just too keep the customer happy, i pitched this proposal too her but she just refused to do it at the Cyber Monday Price. My question is why cant they check the stock at the warehouse before they put it on a 50% discount? and other stores have this item in stock that they could have sourced it from as well. I want an explanation as to why i cant take a bigger size for the same price seeing as how the website still let me place the order if it was out of stock! </p>