I too was very delayed into work this morning from Honor Oak - ended up taking the 171 to Elephant & Castle, then Northern line to Angel - too me over 2.5 hours to get to work!

I have responded to Southern's 'contact us' page on their website and suggest other disgruntled passengers do the same... will be interesting to compare responses/excuses.

http://www.southernrailway.com/contact.php

good luck for the journey home!