To be fair, there is really nothing I can complain about. They are happy to resolve by full refund, exchange to full replacement value or for us to pay or have refunded any difference. They got an inspector out who says it's a manufacturing defect. They've contacted the manufacturers in Italy who say they can't supply the parts and the inspector/possible repairer says he can't repair without manufacturers parts.
we have a narrow piece of wall and the smaller of the two sofas fits in it perfectly, that's very difficult to find hence me not wanting to just choose something else. Only options in same sofa are black, cream or pale grey, none of which I fancy.
I think we are going to get an upholsterer in to see if they can do anything and then charge that back but it may invalidate our guarantee. It's obviously a minor issue in the grand scheme of things, but like you, this is our first new sofa for about 18 years and I redecorated/bought curtains and cushions to fit in with the change of colour scheme.