Given that I don't have an active NAB account I use regularly and this is not an Australian Number I suspect it's spam.
0 complaints this year
1 total complaints
Steve on +674 554 5519
Marvin on 4981345780133
Momo aus Tokyo hat mich angerufen !über insta !! Ängstlich
Anonymous on +62 821-4486-9987
+862156982361 - didn't answer because phone no looked dodgy and not local - no from China and...
Anonymous on +91 93233 97965
left a voicemail but no one was speaking
Anonymous on +65 3165 1422
I do not know anyone from +65 country