It seems that I can write notes, but I can not retrieve it in the web interface. When I specify "Retrieve" option and set the TB number to TBNWDK. There is a error message saying "No match" to the TB number.
Please note that the geocoin is placed in "Forbidden Trail" cache:
http://www.geocaching.com/seek/cache_details.aspx?guid=b5c0ffef-a3d0-483f-8174-d4c5f71cccfc
@owner: If you can move the cache to specified cache. Regards