Was just going on the info passed to me by a couple of tame reps. 'Twas them that mentioned the timescale for payment as well. Allegedly NATS are drafting in a specialist company to sort out backpayment because it is too complicated for our legion of accountants, what with SMART pensions etc.
So that'll be another consultancy fee that could've been avoided... wonder if Mrs PB has an interest in that company as well as the fimbles agency...