BF water leaking

We had quite a number of reports of water leaks into the cabin and the boot with the BA, which had real build quality issues, but we haven't had reports of later models suffering in the same way. I would have a panel beater look at the car to assess where the leakage might be occurring and if that suggests it is a build problem then you could approach Ford for help. But I wouldn't hold out much hope of you getting help with the car being four years old and out of warranty.