Adsense bug: "Since last payment" option vanished!

Bug in adsense: Ever since adsense started showing earnings in local currency, the "since last payment" drop down option has vanished for a lot of users. It's an extremely annoying bug, since it's too hard to find out how much you've earned now.

See more people confirming this at the google forum:
http://www.google.com/support/forum/p...

It is completely impossible to contact google. Any contact link just leads to help pages and forum, which isn't doing any good. So help bring googles attention to this please.