My Sister bought a JVC LT39C790 TV from currys last year. Recently, just after the 12 month warranty expired, cloudy vertical black lines appeared on the screen which seem to be getting worse. Currys want €110 to inspect the TV and say that if the fault is due to a manufacturing defect they will repair or replace the TV.We're hesitant to do so as if we pay the €110 Currys can just say the fault is not due to a manufacturing defect. Has anyone gone this route with Currys?