Your letter is so beautiful and heartbreaking!  I wish you much good luck in getting your account back.  If you don't get the apology you deserve, I hope it will console you that authorities rarely understand art.  This has been true for hundreds and probably thousands of years.

To recover some of what you have lost, you could search Google Images to see your images and ones connected with you on Flickr.  You could search on regular Google for flickr.com/photos/lilly1975, flickr.com/photos/lilly1975/page2, etc. to find cached pages, though sadly without images.  You could subscribe to the feed for Uploads from lilly1975 on Google Reader and scroll down to see 1729 entries, though again no photos.  It's not the same as having your account, but it's something.