Leaking sunroof?

I have a vauxhall Meriva, with two sunroofs, the front one has stopped working and water is seeping through to the passenger footwell, we have looked at the water wells in sunroof and they were full of water, and had been dripping water into the car, I can't afford to go to Vauxhall as they want around £90 just to look can anyone help, thanks

Marilyn
July 2012