The taxman has messed up, how to fight any "demand"

The taxman has screwed up and we now expect tax demands to fall through the letterbox due to no fault of our own.
These "demands" can be fought under the A19 Extra statutory concessions. Do not pay what you don't have to! More details will be published here http://www.litrg.org.uk/ Tuesday
These "demands" can be fought under the A19 Extra statutory concessions. Do not pay what you don't have to! More details will be published here http://www.litrg.org.uk/ Tuesday