After washing in the machine eeza? You could investigate the drum for rust and check that inside your door gasket is clean and nothing stain producing is lurking in it.
I had the same problem a couple of years ago, after calling out the repair man, it transpired that something had gone wrong inside the machine, and something like a lubricant was leaking into the machine( sorry can't remember exactly, what it was now) but it was repairable, but not cheap of course! my machine was a few years old so I decided to replace it rahter than have it repaired............welsh