Thought it unbelievable, but maybe representative of service times improving substantially.
DWP received the renewal paperwork from me on Tuesday 23rd July and their decision letter was dated Monday 29th July!
That said, the indefinite rewards remain unchanged even though there was substantially more evidence provided on a deteriorating condition. So they maybe read it all a bit too hastily, which means another letter outlining some points will have to go back to them asking for a review of the decision.