WHY DO PHONE NUMBERS AUTOMATICALLY APPEAR IN TWO DIFFERENT FORMATS IN NIGERIA

WHY DO PHONE NUMBERS AUTOMATICALLY APPEAR IN TWO DIFFERENT FORMATS IN NIGERIA.

  
I am an iPhone user and I love the iOS more than the rest.
My major issue with the iOS however is the failure to recognise some numbers to show only the number and not the name in your phone book.
Close observation made me to notice recently that in Nigeria it is a problem of the format in which the number automatically appear.
When I key in numbers to save into my phonebook, they either appear on iPhone in a spaced format (0800 000 1111) or in a format without spaces (08000001111). 
The good format is the one with spaces. If calls/Sms comes in with the country code, iPhone will still recognise it. If however a call/Sms comes in in a different format (with or without country code) for the format without space, iPhone will not recognise it. This disparity in the treatment of numbers is really an issue

Has enough escalated this problem to our own experts and has there been any solution to this here in Nigeria?

I wish there is a token to use to enforce the spaced format on every Nigerian number.

Thanks for feedbacks.