False advertising and delivery status

Ordered a cable that I desperately needed on Friday 19/12 and joined the premium subscription for their special offers and delivery. The site stated that if I make a purchase on Friday before 11.58PM I can get delivery on Saturday. When I completed the order @ around 7PM after paying it stated delivery for Monday. I called on Saturday and spoke ro Mauriette and she assured me they will deliver it on Saturday and it never got delivered. I had to purchase another cable which cost me R250 for the meantime. On Sunday I called and they apologised and again assured me that I would receive the cable then. I was okay with it understanding that they might have been busy or something. It didn’t show on Sunday. I called Monday morning and I spoke to an agent and told him that Takealot has dissapointed me and cost me money and should at least reimburse me somehow and he said they will get back to me but nothing. I asked to be cancelled on my subscription and refunded my money I paid and they refused stating that I used there delivery service. You are false advertising for money from hardworking people, shame on you. Someone needs to call me to discuss this