Rox, that is utter nonsense. You can buy salon products on EBay!!!! I am a trained hairdresser (salon I trained in has 5 stars in good salon guide) and sold products to whoever was willing to buy them. It was shampoo and conditioner we were selling not explosives!!!! You can walk in off the street into any salon and tell them what you want to buy and without any sort of consultation whatsoever they will sell it to you simply because hairdressers usually work on commission!!!! They may try to get you to have a consultation so that they can talk you into spending more money in their salon.
We are talking about a nine year old girl's holiday hair here, so I think a conditioning treatment from Boots and a leave in conditioner along with a trim, should do the trick!!!!!x