I have just received my latest bill of £150.89. According to the statement this has increased from £105.45 last year. I calculate that to be nearly a 50% increase. I would therefore have expected a detailed explanation as to why my bill has increased by 20 times inflation. Unfortunately you seem to have forgotten to do that. You have provided a leaflet stating average bills have increased by £1 per month but nothing about why my bill is now nearly £4 per month more than it was last year. 
Please therefore provide the following information:

The reason why the bill has increased so much
The reason why my bill in particular has increased more than the average bill