Also if you travel to Victoria on a weekend this would usually be included in your london terminals ticket, however when the trains are down the only way you can do it is get the bus to crystal palace and then pay and additional fare to go to Victoria.
You shouldn't be paying for that as the ticket allows for break of journey if travelling via Crystal Palace. If the gate won't accept the ticket, ask the gateline assistant to let you through.
A London Terminals ticket allows you to travel to the following stations as well as break of journey between:
London Bridge
Victoria
Cannon Street
Blackfriars
City Thameslink
Waterloo
Waterloo East
Charing Cross
Vauxhall
However it is not valid on the ELL north of New Cross Gate to Canada Water unless Southern have arrangements with London Overground during engineering works.