Google talks about the problem here with an explanation as well as workaround: google.com/support/forum/p/AdSense/thread?tid=2e75a19e09f7e5f0&hl=en
You may want to review what the Google employees state as neither one of those statements are correct.
yep dont worry ..it will be safe ... and it will be reflected soon... it happened to me also few months back!
I m glad that Google has fixed problem of missing payment so often no need to worry anymore its fixed now