Absolutely pathetic service at a simple job that doesn't require much intelligence!!!!

I ordered a number of items as per order *** from Takealot. The first problem was when I received a notice that my order was ready for collection only for me to notice that one item is short. I called and was informed that they didn't have enough stock of that item, but that they'll send the order anyway and have me collect the outstanding item when its ready. Why didn't they inform me of the issue before just sending me a notice that the order is ready for collection (when they know it's short an item)? I forgave them for that because well...life happens. Here's what p*sses me the f*ck off. When I collect my order which is already one item short, I see that an item of which two was ordered had only one of those items in the box and a different "replacement" item in a similar line of that product. That means, Takealot, decided that since they're short on a specific item that just pack a replacement of their "choice" in the box. It is intentional because one of the pair ordered was in there, so they know I wanted two of those, but they obviously used their initiative to decide for the customer that a different type of model is good enough and the customer will just accept it. I am f*cking livid with this shi*t service. I Takealot to give me my what I ordered as a matter of urgency because I already paid for the stuff!!!