Furniture Update... Can't Build to Size

Today I received a call from Moral Home Furnishings that started with the line "I'm sorry to bother you on the weekend, but we can't do the sofa that you ordered in the size that you wanted." With all of the dramas that I have been having with the house lately I was just about ready to give the lady a piece of my mind when she added, "but don't worry we are going to make it a little bit larger". She explained to me that the size that we ordered, 2100mm, did not align with the buttons (as shown in the pictre below) so we have the choose whether to have the sofa 60mm wider or narrower. There is no way that I am paying $3000 for a sofa and then making it smaller!