Happened to me as a Planning Controller in Budapest (Hungary).
L'viv calling on the phone:
L'viv: Hello sir, can you tell me?
Me: Tell you what?
L'viv: Just can you tell me, for line check?
Me: I read you five.
L'viv: No no, can you...
(L'viv from background: NO! CALL! CALL ME!)
L'viv: Ah sorry. Can you call me, for line check?