NATS - Closing job adverts early?

[TamedBill]

Hello,
I'm applying for a job on NATS website. (Fareham commercial dept)
The closing date is 2/06/2017.
Does anyone know if they bring closing dates forward?

My CV and cover letter is almost ready to go but I saw on Linkedin just now it said 'This job is no longer accepting applicants' but it is still advertised on NATS website
Many Thanks in advance

[chevvron]

Maybe they have enough applicants already to do a 'paper sift' and decide who to interview or more likely, my having been employed by NATS (and NATCS) for 40 odd years, they've decided to give the job to an existing employee.