I am a professional decorator and have worked for myself for over 40 years, one of my customers purchased Laura Ashley wallpaper but when I opened the rolls every single one had a stain down the edge of it, so I rang my customer at his work and he came home and took the paper back. Just before Christmas last year I decorated his bedroom but I only papered one wall, he had purchased Laura Ashley wallpaper again as well as their paste (I normally use Solvite), I finished the job at 10-20am on a Sunday morning and my customer was overjoyed with it. I was sitting at home at 12-15pm and he rang to ask me if I had any paste left over, I assumed that he wanted to paste some other paper back but he said the edges had all lifted on the paper I'd just hung. I thought he was joking but when I went down every single edge had shrunk, I asked him to leave it for a few days and I would sort it out, I contacted Laura Ashley and told them that this wasn't the first time I'd had a problem with their paper and they agreed to replace it and it was delivered by courier so I went back and re-papered it the following Friday as my customer had stripped it ready for me. I tried to claim the cost of labour but they wouldn't pay for it, what I will say is that your decorator should have noticed the different shade on the paper and he should have told you instead of hanging it. If I get a customer with Laura Ashley paper again I will warn them about what could happen, and I'll be charging extra so that I don't lose so much money if anything goes wrong with it.