Appealing for Financial Aid - Phone or Letter?

<p>I'm planning on appealing for a bit more of financial aid, but was wondering if this was better to do on the phone or through a letter. </p>

<p>And for those with experience, do you think they would let me lower my parent's contribution portion of the EFC and raise my Student's contribution by the same amount? (so I could utilize more scholarship money)</p>

<p>Thanks!</p>