Would be interested to know why... I’m quite thick when it comes to polling!
There is a wide range of red flags - again, the 'effective sample size of 302' is enough of one in itself - but this will do as a starter:
Top is the unweighted sample, bottom the weighted sample. A quick comparison to the actual GE results in the constituency may be instructive.
So they're intentionally undercounting the number of people that voted for the Brexit Party in 2019, and the Tories are winning the poll. I'm trying to think what they're trying to pull here if it's not just one of incompetence.