Incoming calls do not show up the callers Id or phone number on my Samsung sgh u600

[#1]

No caller information is showing up on my display screen. The phone rings but until I answer the phone, the display is black. Yet after I answer the callers name or phone no. Does show. Just doesn't before answering. I have a Samsung sgh u600 any ideas anyone please. Iv also checked phone settings and all seems fine .

[#2]

This may help you http://www.samsung.com/sg/support/skp/faq/878617

[#3]

Thank u I checked the settings on the phone and they were correct.. I don't know if u can turn off the incoming caller ID on giffgaff but it was working before , then stopped. The screen works on anything and everything but that , so I assume it's not the screen . So I'm a bit stumped . Does any one know if u can turn off the display incoming calls via giff gaff . If I have I have no idea how. Any ideas anyone. Thank u for your reply , I do appreciate it

[#4]

Hi @wimlow.

This is not a giffgaff issue and must be controlled from within your phone settings.

Good luck.

[#5]

Sorry ... should be winlo