Alas there is no Polish council promoting the Polish language in such a way. That job is done by Poles working abroad and teaching various foreigners how to say "Beer", "I love you" and various swear-words.
I just looked it up on the winterweb and all I could find from the British Council is a list of courses for learning English. They all cost money. I know nothing in life is free, but what about people working in the UK who can't afford to spend valuable time and money on going to college, and who would much prefer to receive a bit of help from books or from the internet?
English Is Fun
I thought it might be. Looks like it could be useful for learners of a particular age.
I wonder if there's a book called "Polish Is Flipping Tricky As..."