On my way back from gatwick airport to weston super mare, tried to upgrade to first class on basis of the zonal map system website includes gatwick airport, so in my knowledge £5 a zone, so £15 for the whole journey, guard came through and said no, started going off saying we don't upgrade! I said its on your website, gave up trying to argue and sat in standard, is he right or not, or are managment at fgw not telling guards right info?