Yellow finger nails

I have recently been wearing a green nail varnish by rimmel that has dyed my nails bright yellow!! I am getting married in 10 days and have been trying to get rid of it but nothing works!! I have bought an expensive product that claims to brighten nails but no luck! I have also tried lemon juice and white spirit, which a friend told me would work. Does anyone have any ideas??? I really don want to get married with nasty yellow nails!! Thanks