Surrey Mirror published Here is the answer on if South Western Railway allows commuters...

Now South Western Railway is now operating trains in Mole Valley, replacing South West Trains services, many passengers are wondering what this means for tickets they previously bought. The new railway franchise launched at 2am on Sunday (August 20), replacing South West Trains (SWT), and promised 'faster journeys and more services' for passengers.If you have a SWT smartcard, will it still work on the new network? And if you have an annual gold card from SWT, will your six free weekend passes...

from Surrey Mirror All Content Feed http://www.surreymirror.co.uk/is-south-western-railway-allowing-commuters-to-use-old-south-west-trains-tickets-we-have-the-answer/story-30490504-detail/story.html