Items don't exist

I bought a laptop on 26 November. They noted delivery as 8 December. Takealot emailed me today, on 4 December, to say they don't have the laptop and they will refund me.

They should have immediately told me after I bought the item. Furthermore, they gave me a credit on their website, not a refund to my credit card.

They want to force me to buy something else from their **** store.