Help!!! I chucked the heavily stained “no stains/great condition” cushions from a sofa I bought from FB marketplace in the washer with some detergent and oxyclean...they came out amazingly. However, they are now noticeably brighter/whiter than the remaining upholstery (which I have treated x3 times now with upholstery machine containing the same solution as the washer had, plus other solutions”). What should I do?!? It’s the Gower from DFS so arms are fully visible as is base and backrest. Kicking myself as there is no way it can stay like this. I’ve also tried 6% hydrogen peroxide on the non-removable elements to lighten but to no avail.