Takes lot ****** my child of Christmas and tried to rob me by charging me for an incomplete order!

I placed an order with Take a Lot for a Barbie in a Car and two music discs. Right after placing the order I was notified via email that the doll was available in the warehouse and ready for shipping but would be delayed by the discs as these were being sourced through a supplier. I then received notification via SMS on the 10th December that my order was ready and would be delivered on the 11th. In an attempt to verify the due amount, I logged onto my online account and discovered that the order was amended and the doll had been canceled. I checked online and surprisingly the doll is still in stock. The delivery man arrived at my house and asked me for the amount including the doll and I notified him that it is the incorrect amount because the shipment is incomplete to which he told me i needed to pay what he had on his screen. So we stood there while he contacted customer service with me looking like a lieng customer! I am extremely annoyed that the order was cancelled without notification and I was going to be ****** and overcharged by nearly R500 if I had not logged in the day prior to verify cost. I now have a child without a gift and it is unjustified because the item is still in stock with Take a Lot. I would like some kind of explanation or better yet compensation for this attempted ******* and inadequate customer service! Poor is an understatement...