Skoda5

Hi Mike (or anyone else), I was wondering if the garage discovered what the problem was in the end? I have a Skoda Fabia and there was heavy rain tonight when driving car water was gushing onto the floor of the passenger footwell. When we turned a corner more water came in. The floor is soaked. Any ideas how the water is getting in? We did have the pollen filter removed a while ago - would this have anything to do with it? Thanks so much.