Very, very poor customer service from takealot.com

I have trying to get Takealot's customer Care team to provide me with an invoice for a laptop with the laptop's serial number printed on the invoice. I need this for a warranty repair on the laptop bought in November 2022 but which Lenovo have as April 2022. Without the serial number Lenovo won't honour the warranty. It's been more than a week now and I keep getting the same response on how to download the invoice (which still has no serial number on it) or promises to have it updated which are nor being delivered on. It is such poor service when no customer care consultant reads for meaning or is able to get the right outcome..