Incorrect Price Charged

I ordered 4 boxes of masks advertised for R70 each (R70 x 4 = R280) and was charged R396 (R99 per box) which I only saw when I received the order confirmation email. After requesting assistance I was advised that Takealot is unable to honour the deal price and that I apparently need to sort it out with the third party. These masks were never advertised for R99 per box that day so how can I be charged a different price than was advertised. I am disappointed in the fact that Takelot is shifting blame and not taking responsibility for the fact that they charge me different prices from what they advertised on their platform even after I sent them the screengrabs as proof. Takealot just lost a very loyal customer. ID ***1