Gareth, any chance you can provide a bit more context? Not sure what you are talking about. Apologies.
I tried to apply the badge to my reputation without any success. My account profile has my twitter username included and I followed the link on the opposite (gear) side of the mission, taking me as expected to the correct twitter page for the target to be followed, which I duly followed. I'm not sure of the how the underlying implementation works, i.e. call back or asynchronous, so wasn't sure if I should expect immediate results.