Address (can be used to send offline claims):
MTGOX Co., Ltd. Office of Bankruptcy Trustee
Suite 202, Kojimachi 3-chome Building
3-4-1 Kojimachi, Chiyoda-ku, Tokyo, Japan
Telephone:
English:
+81-3-4588-3922
Operating Days: Monday to Friday (excluding Japanese national holidays)
Operating Hours: 1:00pm to 10:00pm JST (Japan time)
Japanese:
03-4588-3921
Operating Days: Monday to Friday (excluding Japanese national holidays)
Operating Hours: 10:00am to 5:00pm JST (Japan time)
Please note that the MtGox trustee's help desk is separate from Kraken.
Kraken does not have a phone number to call for support. Any phone number you find claiming to belong to Kraken is fake.