Item in bundle missing and agent says out of stock

I placed an order on unboxed deals from takealot. Order number ***. Leapfrog bundle read with me scout AND alphapup pink. The delivery came today. With only one item. The read with me scout. I was shocked and thought the delivery team forgot to give the other box. I called the takealot call Centre about 45 mins ago and the guy promptly informed me the alphapup pink was out of stock. This is ridiculous and ********* how can you sell 2 items as a bundle when one is out of stock. He then informed me I have to return the other item and then they can figure out what happened. Which doesn't even make any sense. And why should I return it when I want the item and that is why I ordered it! And how can he lie and say it's out of stock when firstly the bundle was still on sale two days after I purchased it and secondly the alphapup is right now available on takealot in both pink and green. I don't understand how takealot can behave so *********ly. I bought a deal I paid for it and I should have received the full deal as a consumer it is my right. I refuse to return it and I want the item that is missing to be delivered by Friday as it is a gift for a child's 1st birthday.