According to
the Plusbus website the bus add on is available for a flat rate ^1.50 when train tickets are bought on line.
Not sure why Didcot and Maidenhead are among the exceptions.
I wonder if, for Maidenhead, it's because it's such a small town with, to be honest, not the best bus service around... usually it's easier to walk (for those that can).. That is just my guess though
