Takealots false price advertising on Black Friday

I eventually bought a Ferrari Red Label Collection Expandable Backpack that was advertised at R369 on friday. After numerous attempts I added the item to my cart only for the price to change to R455.

Today I sent an email to takealot explaining this and they just said that they must have been out of stock of the items at this sale price. What? seriously? Yet when I searched for the item on friday it still said R369. They refuse to refund me the difference. If that is your price advertised for Black Friday how can you go back on it like that?

Really I am not the only one with the issue I have seen numerous complaints yet Takelot refuse to do anything. This says a lot about them.