Why can't I leave Bulb and why my bill is double in a small one bedroom flat

First Im trying for two months to move from Bulb but is impossible because they cut off all the contracts with other companies … because they are in remission …so I can’t leave .
Second I leave in a small one bedroom flat and my bill was 148…how ? From 60-80 last year …when I know people with a house and 2.3 bedrooms and they pay 100 ? Howwww
I want out

You’ve posted this twice. See my reply to your other post.