Hi Ben,
I’ve been to Limehouse this evening and taken these two photos:
The first one shows the gates. These are the exit gates from the National Rail station. It is confusing given the sign on the wall behind welcoming you to the DLR. The second one shows the validators at the other end of the link bridge.
So, use your c2c ticket to exit through the gates. If it doesn’t work you’ll need to show it to a member of staff and be let through the manual gate. Then touch your Oyster card on the validators to touch into the DLR station. At Westferry you should touch out on the validators there and it will charge the correct fare.
