Antarctica Excursion

Here is an update to my husband's Antarctica Excursion. We sent a letter to Princess complaining about this excursion, and how we felt cheated and how we should not have been charged $1,000 for an alternate excursion that he did not want and had no choice but to take.
We received a polite letter back from Princess stating that they are sorry but they will do nothing to rectify this matter. We have never been told in such a polite way, that as an Elite past passenger of Princess, a stockholder and a seller of their product that we were so unimportant.
We sent another letter yesterday advising them that their answer was unacceptable. We will see what happens.