Takealot customer service is no service

I purchased a TCL 55' P7... TV from Takealot in 2023. My TV screen went black suddenly and I reported to Takealot, the returns page said contact TCL directly which I did. I was provided a replacement via takealot as they couldn't fix the TV. I reported this in Nov 25. A credit note was sent to takealot in Feb 26. Takealot credited my account with the discounted amount I paid and not the replacement value of the tv which means I am out of pocket for R3500. The difference between the cost of the replacement TV to my credit from takealot. I am trying to get this amount refunded to me its 3 days and emails are not answered. I am not buying another TV from takealot. Their service is disgusting I would rather buy another make at another shop than deal with takealot again