PEO Croydon apppointment issue

[t1s2010]

I am Tier-1(G) tried to take a date in May.
Dry run. (actual due June but past tech experiences with website made me twice shy).

I went to gov.uk website, filled in personal details and all good, however trying to book appointment is issue.

I could go to 'next 10 appointments' till 7th May 2016. However, there is no appointment time shown for any date selected 8 May & onwards. It is not 42-days till 7th May.
Plus, I see "non-greyed" dates till 14 June i.e. 2-months far.

Anyone faced or know about the issue? All dates after 7th May are fully booked is highly unlikely case, considering dates as recent as 16 April is available.

Anyone any help or idea please?

[CR001]

Over the last couple of months, appointments only appear to be available to book for 20-28 days in advance at present.

[t1s2010]

ohk. Thank your sir CR001

Appointment seems to be easily available, unlike 2-3 years back when it was real fight to get appointment. So should be good to book later.