Instead of using hydrogen peroxide, use 40 Volume creamy peroxide from a beauty supply
like Sally's. Use only clean dry cloths. Apply the peroxide and work it in the area in circles and in squiggly motions for about five mins. Use another cloth and rub the area pretty hard. Apply another coat and let sit for 10 mins. It won't run because it is so creamy. Rub it off again.You will see the stain coming up right before your eyes. Repeat the process until the stain is gone. I removed a really large black stain. Neutralize the area with vinegar and water. You should be able to apply a few coats of wax and be good to go.