Luckily I had taken a photo of the arrangement which we liked in IKEA on my phone because when we returned the following week to make a definite order they had changed it all and we would have had to order it from memory. As it was, the saleswoman used the phone picture to make up the order and we had it delivered a week later in a ginormous lorry who had difficulty manoevring through our green lane. And then the fun began!
What is especially challenging is when a crucial screw is missing. They are so tailormade that you cannot just go out to the garage and take one from your own stores so it was another phone call to IKEA and we will get the missing items in the post. I expect it will be finished before the end of August.