If you like me have been wondering how much Heathrow Holdings Ltd must be spending on the tube to market their expansion plans with adverts on bill boards and ticket barriers at Westminster tube station etc, please see the response l got from TfL on that very question.
The response reveals in the month of March 2013 alone, Heathrow Holdings spent £233,700. More recently in May £66,016 was spent and it had been kept at that level monthly up and till November. I will now have to find out what was spent in December 2014 and January/February 2015!
Lets hope its money going down the tubes for them!