nanna8
People say one thing and do another ,though. Polls are notoriously inaccurate where I live, don’t know about the UK. Also- a week is a long time in politics as they say . Anything can happen, all sorts of jiggery pokery ,at the last minute.
The best of ours have got "notoriously" better in recent years nanna8 by using multilevel regression with poststratification (MRP).
The problem is that although the majority of polling is accurate it us on gross figures telling you how people intend to vote across the country (at this moment on this day). Even that may/will be useful when analysed by experts, but what matters are seats. All votes are not of equal value under FPTP.
Just as not all cats are black not all polling companies are equal. This does not mean they are out to mislead you but they will each have their strengths. YouGov are at the top of election polling with a couple of others.