Lets say I am calling an office to request a transcript.<br/><br/>are these all proper ways to initiate the talk?<br/><br/>" I am trying to request a transcript for....(is it awkward to use ing form? but I think I heard lots of people usuing it)" <br/><br/>" I wanna request a transcript for..."<br/><br/>" I am calling because I need to request a transctipt..."<br/><br/>Teach me the most casual and colloquial way.<br/><br/>Also, when is it proper to use<br/><br/>"I am calling you in behalf of..."<br/><br/>Thank you!!!