I have an indefinite award for DLA but in September I was sent a renewal pack. I thought indefinite awards would not be assessed until 2015. I still haven't had any correspondence from them since I sent my renewal forms back. I hadn't had a change in circumstances so I was surprised to receive the forms.
As this is your first post, I will take the liberty of assuming that you are also new to the site and post this FAQ that might help you find your way around.
A certain proportion of indefinite DLA awards will be reviewed under the 'Right Payment Program', it sounds as if this is what has happened in your case