I have been trying to register my SKY iD on sky.com but it will not accept my mobile number as a valid number!

I select the prefix (+353) then enter my number including the 0 as it seems to require it but when I press "SAVE" it returns a message saying I have not entered a valid mobile number! I entered a different number but I got the same message!

Has anyone else had a problem with this form?

you need to drop the first 0 when entering the number.

That's what I thought but when I do that I get a red outline on the input field of the number. When I add the 0 the red outline disappears!