Rain leaking into interior

[AudiA1]

Hi, 
My audi a1 is leaking into the interior. I have checked the windscreen and removed the scuttle cover and have cleared out the drain holes but the car is still leaking. Where do the drain holes drain to? I'm wondering if there is a pipe or something clogged after the water drains from the drain holes.

[19cb92]

Did you find the cause? Having same issue