That's very interesting and I note no restriction on break of journey. So for £61.80 you could travel from Worcester to Bristol Parkway, stop there (last weekend to attend the RailFuture Severnside meeting from 9 to 10 a.m.) and carry on to London, spend the afternoon in London and travel back the same route. Not bad when a SOP▸ return Parkway to London costs £67.20.
Looking at that fare, it is subject to restriction
XC▸ , which may be a candidate for the longest text on restrictions. There's a huge list of "not valid for trains timed to depart before...", covering 34 stations, but only a single entry for "not valid on trains timed to arrive at Birmingham New Street before 10:15." Question - couldn't the long list of departure times be simplified into an arrival time at Paddington?
And you do wonder whether anyone proof-reads this text. Restriction XC includes "not valid for trains timed to depart before ... 09:40 from Nailsea & Backwell;" AND, further down the list "09:10 from Nailsea & Backwell;".
There's also a note about "Seasonal variations" : "Due to Improvement work between Exeter St Davids and Taunton from Monday 28 September to Friday 02 October, some services will be diverted. As a result amendments will be implemented to this code." Those dates must be from 2020.