If I want to upgrade my membership from Gold to Platinum, and I follow the steps on the screen, how will I be charged? Will there be an adjustment from the Gold membership fee, i.e. only $25 additional charged? Or do I pay the entire Platinum fee and my membership is now upgraded to Platinum for an additional year (my initial membership was started 4/11/2010) until 4/11/2012? It is a bit unclear on the explanations dropdown and I think that is how I am reading it.
Thanks in advance.