hi steve, heres what i do, you need to gently dampen the area with the marks using a cotton bud, then with the eye end of a sewing needle (+ this is the fiddly bit!) gently reshape the threads so that they are woven again like the rest of the blazer, after your happy that everything is back in shape, cover the dampened area with a piece of cloth and steam it, dont move the garment untill its cold and it should be good as new. you may need to repeat the steaming part a couple more times. hope this helps. ju. x
ju, May 2009