eazy now rude bwoyz an galz wa gwan!!!

About 3 weeks ago i braught some alloys from rochford tryes and they didnt fit onto the valver,what i mean was that there was no clearance between the rim and the caliper.Now rochford said they should have fitted the car, 6.5j,5 stud,35 offset, 15s. Now ive looked at other sites and they say that this is the right offset for my car so im confused? I want alloys and ive got £400 to spend but i dont no where to look....my car is a r plate 97 model,do i ahve vr6 breaks? please help....