Capability For Work Assessment

I spent the night before watching YouTube videos about all the underhand tactics that the DWP assessors use to catch people out Disappointed

The interview went ok, I think, but something strange happened.

At the end of the interview, the interviewer said something about my payments being backdated? I was totally worn out by this time and couldn't concentrate.  She said something about it taking a week to process and then I'd have some spare money to get my car fixed!

In contrast to all the bad stuff on the internet, I think they may be giving me some more money.  I thought I was just going to prove my fit note!

Did I mishear her?  Did she get it wrong? Have I imagined it? 

Is there a name for this possible extra cash ?

Head's in a pickle