Takealot returns, poor service.

I purchased a 43” Samsung TV from Takealot. I opened the box, and fitted the TV stands and placed the TV on my stand. I then realised the TV doesn’t sit/fit nicely. I had opened the plastic which had the *****s for the TV stand and I had opened the battery plastic ONLY. I placed everything back and returned the TV. 3 staff members at takealot are being difficult with me because of the selection I made when logging the return. They query why I made the wrong selection (unwanted gift) & I tried to explain that there was no other suitable choice and I made an error and since TV doesn’t sit/fit nicely on the stand I have now changed my mind. No one is saying what the correct selection should have been because there isn’t one. I returned the TV in 7 days, well within the 30 days return period. TV is NOT damaged and NOT used. All accessories were returned NOT damaged. They want to reject the return based on the selection made when logging the return. They’re not saying ANYTHING about the condition of the TV and accessories because there is ABSOLUTELY nothing wrong with them but focusing on the selection made and not even considering my explanation. CPA states that a consumer is allowed to change their mind and return a product even if it was opened.