Pathetic service Passing the buck

I purchased a Dell gaming monitor for my son for his birthday on Takealot. We kept it until it was his birthday he opened the package and turned on the monitor and saw the is a defective pixel in the centre on the screen. So immediately I logged a return on Takealot. Got my email stating it was accepted for return once inspected I received another email declined. To my shock I thought how can this be declined as I bought it from Takealot how can they decline. Some silly reason I need to get a credit note from Dell. I paid such alot for this monitor as a gift my son was so upset. Then I get another email from Takealot saying I THE CUSTOMER MUST CALL DELL AMD SORT IT OUT MYSELF. WHY IS TAKEALOT PASSING THE BUCK. WHY MUST I CALL AND SORT THIS OUT WHEN I BOUGHT IT FROM TAKEALOT. I purchase alot from Takealot to get this service shocks me. So I decided to call Dell only to get routed to an international call centre in India who has no way of understanding me as they can't understand English. I am so angry with this pathetic service of Takealot o feel to cancel all my orders and return all the products I bought and tell all my family and friends not to buy from them. Nowhere does it say oh sir when you buy a Dell monitor and it's faulty please make sure you have a credit note from Dell!!!! What pathetic excuse is this not to replace my unit. I will not collect it keep the monitor I will take legal action instead. Maybe then I will get heard.