Car Giant - AA waranty

[mo12345]

Hi everyone. I'm wondering if anyone has taken the 3 year AA Warranty from car giant & if it was easy for you to claim? I bought a renault megane from them & it won't start when it is cold. AA patrol have been a number of times & can't diagnose the problem because the computer from my car keeps giving them different codes.AA patrol advised the problems should be covered under my extended warranty as the car is now just more than 3 years old.Any advice, thoughts, suggestions on this will be greatly appreciated as my worst fear is whatever is wrong is not covered by the warranty & I'm going to end up paying loads of money from my own pocket to have the car repaired.