Home Move - Error Message

[THJB]

I'm trying to book a home move (https://www.sky.com/help/articles/home-move-start) but keep getting the following error message; 

Sorry, we can't book your move at the moment. Please try again later.

Is this a persistent issue? Am I able to call to book a home move (struggling to find a number)?

[GD1]

@THJB   You can call on 150 from a Sky Talk Line or Sky Mobile.

If you haven't got a current Sky Mobile or Sky Talk this link should help:
(UK) https://www.sky.com/help/home Scroll down and click on ‘Need more help’ and it provides a 0333 number
(ROI) on the same link change the flag in the very bottom corner to the ROI flag to obtain an 0818 number.

Stay on the line and don’t hang up if prompted to. Apparently the quieter times to ring are just after 7am or about 9pm.