Sorry Bran, I meant to say tribunal is Wednesday, so it is definitely tomorrow now. I am having problems with the 'enter' key, DD has bashed my lappy when I was in the next room and every time I press enter, it throws up a new window to edit my 'sleep' settings. I am explaining because I am unable to write this paragraph any other way until I reboot. I will check whether my train stops at Limehouse. I wonder if the Chelmsford to Liverpool Street train does stop at Limehouse. I'll go see if I can find a website detailing stops on the way.
Just be aware that not all DLR trains from either Bank or Limehouse go past East India so check the final destination and make sure it's going the way you want.
If you're starting from Bank then you're best off taking whatever train comes first and changing at Westferry as all or most trains from Bank go via Canary Wharf (the wrong way for you). If you're starting from Limehouse then approx every second train will go via East India.
There are maps on the platform, or even better print one off from TFL. There is a display board on the platform showing the final destination of the next 3 trains so you can check which one you need on the map.