Many thanks Art for bring this to our attention. However since 13.00 hours have tried 4 times to sign this petition with 2 different email addresses (including not using your link but the Government website) plus twice using my sisters details and email address (she also supports the petition), and we have not received any verification email back from the Govt to confirm that we wish to support the petition. Can only presume that some civil servant/Minister does not like the petition and has put a block on it - as previous verification emails for other petitions I have supported have been received by me within minutes. So much for democracy for motorcyclists!
Will try again tomorrow.