Bad customer service and unreasonable quotes

I purchased a Hisense Sero 8 Pro Tablet from Hi-Fi Corp for R 1500.00 and the screen cracked on the tablet a week later. I took the tablet to Hisense Repair Centre in Durban & was told by Jessie that there were no spares & it will have to be ordered from the Head Office in CPT. I constantly followed up with Jessie for 3 weeks with no joy. Then I contacted the CPT office myself and got the repair centre no. and was told that they always had spares for this product and never received any request from the DBN office. I requested for a quote however the quote for the screen was R 950.00 and Durban included the Labour and VAT which accumulated to a total of R 1400.00 which is almost the same as the purchase price and the I am certain that Hi-Fi corp is making a profit off this product. How can the repair to a tablet be the same price as purchasing a brand new tablet???