iPhone Delete Groups in Address Book

[kenchua1976]

I have a weird problem not sure how to go about this.
I am trying to delete an empty group... All the codes execute correctly but the
group could not be deleted. After i quit the app. using contacts, the group is still there.

Hope that any one can point me in the correct direction.

ABRecordRef group = ABGroupCreate();
ABAddressBookRef addressBook = ABAddressBookCreate();
ABRecordSetValue(group, kABGroupNameProperty,GroupNameToDelete, NULL);

ABAddressBookRemoveRecord(addressBook, group, NULL);

ABAddressBookSave(addressBook, NULL);

[j3rm]

CFErrorRef err = nil;
ABAddressBookRemoveRecord(ab, group, &err);
ABAddressBookSave(ab, &err);