This is a general question/discussion about phone numbers and how to say them/write them.
Let us use the entirely random number 0212223333 as an example.
I would write that and speak that as 021 222 3333
It seems common here for people to write/say it as 0212 223 333 and as 021 2223 333 which both sounds and looks 'wrong' to me. As I understand it, the 021 part of that number is the code, so rendering it as 0212 would be incorrect.
Now I agree that the numbers are the same. However, when listening to someone over the phone (e.g. voicemail) who says it 'wrong' I find it takes some mental gymnastics and usually more than one listen of the message before I can write it down and sort out the order in my own mind so I can dial it!
Probably just my strange Aspergers brain but what do others think?