Awaiting delivery of return

I have purchased a Mecer Laptop from takealot in Feb 2020.After a month the laptop stopped working, it wasn't coming on.I requested a return, had everything in tact & sealed accordingly & device was collected for the request.After some time I received a mail stating 2 *****s were missing & this making the warranty null & void.I called the call centre as I sent the device sealed with all *****s in place the consultant said I need to send another mail regarding the incident & she would assist.After sending out another email she replies saying she checked with the relevant dept & they can't assist.I have not recieved the laptop back yet.I am sending through several emails & I get the same reply saying that delivery has been made to me.However I sit not knowing where the device is.On the 08th of June I received an invoice-proof of delivery, which contained an address in Cape Town & I am in Durban.The delivery was made to someone else.I have sent through another email to takealot to notify them of this however I am not getting any help.I want my laptop back as I contacted Mecer directly & they said they are willing to repair the device as it's still under warranty.Can someone please help me.IRATE CLIENT!!