Returned a faulty product after keeping it for 4 months

I purchased a TV through my insurance after I was broken into. they sent me a voucher on Takealot.com for me to replace my ****** items. I purchased myself a Hisense LED Smart TV Order number ***5. I returned the TV on 31 January 2020 as the picture went away, it was returned on 14 February 2020 and when I turned it on the sound was gone. I sent it back again but due to the delays of Covid there was a delay and the TV was again collected after 4 months with me TV I was advised that the power cable wasn't included I remember packing it and advised that I didn't have it and then heard nothing. yester 30 June 2020 I queried when I would receive my TV back as I had heard nothing, today the TV was return with *****s missing for the stand no power cable everything lying in the box everywhere and to boot the TV has not sound still. This wasn't even worked no. they kept it at the supplier and because they lost the power cable did nothing to repair it!! this is not fair I have called on 3 occasion and no one answers the phones I emailed a video of the box and the fact that the TV doesn't work and all I got was a new return note! this is not acceptable and is unfair I have been without a TV for the entire year and in accordance with the CPA I should have a right to speak to a manager which has been ignored and everyone hides behind the fact that they don't take calls. this is a defective product and I demand a refund! bet you no one at Takealot.com has the ***** to contact me.