Inquiries regarding online shopping

MASTERMIND TOKYO ONLINE STORE Customer Center

Hours of operation:10:00~18:00(except Saturdays, Sundays, holidays)* Japan time

Contact form
  • We respond to inquiries in the order in which we receive them, so please be aware in advance that it may take time to reply.
  • Additional time may be required for inquiries received outside of business hours, when there are an unusually large number of inquiries, and/or when the matter requires additional confirmation.
  • We will respond to inquiries received outside of business hours on or after the following business day.
  • If you have questions about products purchased outside of this online store, please contact the retailer directly.

Inquiries regarding pruducts and our sevice

ISOLAR CO.,LTD.

Hours of operation:10:00~18:00(except Saturdays, Sundays, holidays)* Japan time

Contact form