Pathetic Service from Takealot!!!!!

I Purchased a Lenovo Laptop from Take a lot in March 2019. The Laptop Screen is faulty, whole section of the laptop going black. I requested a Refund or Replacement. I booked the return on 05/05/20194, and the laptop was collected from me. I received confirmation from Takealot that they received the laptop. Now I still received NO FEEDBACK from takealot!!! My Ref no RRN-3130-a16e . This laptop has school e-books on, my child can't do his homework, and he can't study for his exams that starts next week as all his text books are on his laptop. I have also lost 1 office license already (previous lenova laptop had the same issue, and was replaced by takealot). I need freaking urgent FEEDBAC****!