From 1st April 2013 Japanese law has changed to require all forwarding companies such as Tenso.com to obtain proof of identity from their users. The legislation detailing these changes is known as the 'Prevention of Transfer of Criminal Proceeds'. More details are available on the National Police Agency website. http://www.npa.go.jp/sosikihanzai/jafic/index_e.htm
In order to continue to use forwarding services such as Tenso.com, you must submit a form of personal identification which shows your [ Name ], [ Date of Birth ] and [ Current Address ]. Please submit a copy of your government-issued identification, such as a Passport, Driver's License, National ID Card (etc.)