Strange how you only pasted the parts relevent to your own agenda, these snippets are taken from what
may be the same web page . .
After people who said they did not know were pushed for an answer or excluded, the survey found 55.5% in favour of Remain and 44.5% backed Leave.
BMG Research head of polling Michael Turner said the shift in favour of Remain had predominantly come from people who did not vote in the referendum, rather than Leavers changing their minds.
BMG Research interviewed a representative sample of 1,509 adults living in Great Britain between December 5 and 8.
1,509 adults living in Great Britain . . nice representative sample
