If someone tells you they called you, but there is no sign indicating that they have called you, maybe you have blocked their phone number.
Ọ bụrụ na onye ọ bụla agwa gị na ha kpọrọ gị, ma ọ nweghị ihe ịrịba ama nke oku ha na-aga na iPhone gị, ma eleghị anya ị kwụsịrị nọmba ha.