Onecart ******* worst customer experience

Order number 688295. My shopper (Tebogo) from Pick n pay mall of Africa contacted me via watsapp and offered me substitutes for items that were no longer in stock. I did not accept the substitute offered but it was still put into my cart. She offered me a substitute for another item which I accepted but that was not put into my cart. Bad service from my first order until this order. They are ******* and I was told that I will be contacted from head office yesterday but I still have not been contacted. This is not the first time and I strongly advise people not to use this service.