Takealot Ripoff

I ordered a Bosch cordless drill as advertised, logged onto Takealot Web page, ordered, paid and set delivery for this product, all agreed. On Monday I get an email saying that this product had been returned. I never gave any such instruction. I looked again on advert page, and the same product was today advertised at 3 times the price. I feel Takealot is legally and morally obliged to supply this product at the paid price. Now they want to credit me, I want a total refund, and will never want to do business with Takealot again.