Discovery Mall, good luck with that

I have been trying to buy a single ****** item using my hard earned discovery miles!!!! There is absolutely no clear way to purchase an item on takealot, using my discovery miles. You log into your discovery account and there before your delicious eyes are your accumulated miles. You click on anything you like and nothing, but nothing works. I have now ordered the same item on takealot in a hundred different ways and i cannot get the option of paying with miles to come up!!!!!!!ll You must be doing something wrong.......I convince myself, so I google search "how to pay using discovery miles?". You are advised by takealot and discovery that you must go via the discovery mall (app/login/home page) and select takealot as the rewards partner and you will then be redirected to the TAL and then you will have the option to pay using discovery miles...........jaaaaaaa right, good luck on that one. Then the discovery BOT butts in and wants to help, so you ask it and ask it and ask it and ask it, you switch between English, Afrikaans, German, Spanish and Xhosa. In the end you advise the BOT to go away as it has the IQ OF A BRICK.......then it gets all sarky with you and wants to know what you want to complain about......and proceeds to give you 4 wrong selections!!!!!!! Go figure. Why why why does something so simple and enjoyable turn into a nightmare??????? Which compete idiot designed the App? Thank you discovery for Not helping me, and thank you for frustrating me with still as yet no end in sight.