3 week old Tablet breaks

I purchased a Tablet from Total Sports Blue Route for R1400.00, a week ago the screen went blank and a crack appeared in the inside of the screen. It was returned to the store to send it away to have it fixed. When I enquired about the progress it was said that the technician called and the customer services agent explained to him how it looked, it was never sent away for assesment, they drew their own conclusion and said that it fell. I am an honest person and if it had fallen I would have said so, they are refusing to replace it or have it fixed. It is only 3 weeks old! I was also told that the 3rd party people who fix it is refusing to collect it. What is total sports doing about this? I want answers, either they credit my account, give me a new tablet or they fix it at no cost.