i got the above brush this morning and its wont fit on my plastic adjustable angle adaptor!!

no mention on gardiners website that theses brushes dont fit on standard plastic goosenecks!!are the gardiners plastic adjustable goosenecks compatible then?? as they just look the same as the 2 ive already got!!
you think they would tell you on the site under the brushes section!!
first impressions are it looks cheap and not as well made as the vikan ive got.also the bristles seem really soft!it might be harder to scrub bird muck off!!
all in all not very happy as it cost me £44 with delivery!
i will reserve judgement on it properly when ive used it which wont be for a while as it seems a bit pointless just ordering a gooseneck unless i get a pole at the same time!!
i was hoping the brush would fit on my unger 30 footer that ive adapted!!not a chance!!! :

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