Reset Keyboard Dictionary

On my 5, resetting the keyboard dictionary isn't working no matter what I try. I press the reset button, and it acts as it did in iOS 6, but hasn't actually reset it.
EG I've typed a certain word in CAPS so many times now that the phone just auto corrects it to that, yet even when I reset the keyboard it still does it.

I've already tried basic steps, such as rebooting, closing settings/all apps in multitasking and trying again etc.