Wrong Item Delivered and Failure to Rectify

I bought my mother-in-law a top loader washing machine on 8 September 2022 through Makro online. Makro then delivered a twin-tub machine. The top loader was apparently delivered to the person who ordered the twin-tub. After numerous telephone calls and e-mails the correct item was still not delivered to her. The blame is just being shifted between the online department and the store. The previous time I phoned I was told they can not get hold of the person where the top loader was delivered to so that they can collect it and deliver to her. I do not want that machine because obviously that person is very happy with a top loader instead of a twin-tub and by now it has been used for a month and is second-hand. I paid for a new machine. In the meantime a lady of 80 years old must wash her washing by hand because Makro fails to deliver my order which was promptly paid for when ordering. This is theft and I will consider taking further legal steps to rectify this situation. I don't know what else to do except taking steps. What else can the public do when nobody at Makro is willing to take ownership of this poor service and mistakes? This is just absolutely pathetic. Anybody considering buying online from Makro must really think twice before actually placing an order. Judging by all the bad reviews here, I fail to believe they are actually still functioning. Can somebody out there at Makro please take responsibility for all this bad service and try to assist the public?