Damaged Goods Confirmed will repair FREE now not!

On the 19th September Nelly Sapo contacted me with the Good News that my tablet will repaired free. <br> Which I was still not happy with as it went in with a different problem and then all of a sudden the screen is damaged. I wanted to know what guarantees I have. As this tablet went in perfect accept that it kept switching off and on. <br> Now when we follow up, we are advised that I accepted the quote and am liable to pay!!! <br> What? Where? How? This is 16 Days ago. I have paid for this contract 2 months now but not being able to use it. <br> I actually just want to cancel this contract now. I am a new customer and this was the worst service I have ever received. <br> I expect this either to still be resolved this week or cancel my contract and refund me.<br> <br>