Takealot nonsense

Bought a pre-owned iphone and the sim card was not reporting sim fail,took it back…receiving clerk said it will take 2-3 days,she did not bother to advise me on deactivating find my phone and provide a phone passcode as I understood that this things can be flashed,now they not exchanging my phone or finalizing my return even after i did both find my phone deactivation and gave them a passcode,then the Mphahlele person is now silent and wven threatened me that they will not process if i dont reply to them of whoch i did,from monday they never even bothered to ask about this thinfs until i did a follow-up and thats when they told me about codes and deactivation…i notice that takealot dont have a customer complain number and is trying to blame me for not doing things i was not informed about when returning the item,even if they exchange i will take this further as i am getting an attitude that they doing me a favor for selling a faulty phone yet they claim to have inspected the phone before resale…what nonsense is this