I ordered a bathroom roller blind. Loved the pattern, got a sample, all very good. Followed their fitting guidance (narrowest point is wood trim around the window recess) with help from my bathroom fitter, and so got an accurate measurement. I did something I've not done before with a roller blind and ordered a cassette header with it. This has turned out to be a big expensive mistake as the fitting is wrong but is something Graham and Brown are now saying is my fault. I have measured and ordered many recessed window blinds before and all have fitted perfectly. This one is too small because (and not made clear from their website) if you order a cassette header, that is the measure they use to fit the recess and the roller blind inside is much smaller so leaves a much bigger gap to the sides of the wall - their fitting fault but now mine according to their very abrupt and pushy customer service contact who has said today it not their problem. Well, I don't feel it is my problem - if I had ordered a simple, cheaper roller blind from them it would have fitted fine - it's the additional measurements of a more expensive cassette header, with the smaller roller inside that is actually the issue. So my advice - don't have the cassette header! Actually, don't order here - much better service and cheaper blinds available from others. I do not recommend this company. It was my first time using them, but has been a very expensive £160 waste that they are not taking any responsibility for. To Graham and Brown - I am not happy at all with your measuring advice or customer service and will not recommend you. I can't afford to buy a new blind for this bathroom refit and so I will leave the badly fitting on up for now and tell everyone who asks about it who it is from, explain the cassette header fitting issue and also the incredibly disappointing customer service experience - pushy, abrupt and not at all customer first. Will not use Graham and Brown ever again.