Sold me a Blacklisted phone, and charged me for Brand new phone.

Takealot sold me a brand new iPhone. I took it to istore which wrote a report stating this phone is blacklisted, so i returned it to takelaot with a report from Istore but takealot says there is nothing wrong with this phone and want to return it to me. How can i use a ****** phone, what can i do with a ****** iphone? I am extremely disappointed in takealot service and sales departments, This is absolutely disgusting to sell me ****** phone. I paid alot of money for this phone that i cant use. I would like to now deal with the highest management at takealot as this matter is not resolved and i am extremely upset with takealot