What the heck is a bank key?

I got this email from Ovi store this morning.

Thank you for being part of the Publish-to-Ovi experience.



During the processing of your bank account, we have noticed that the bank information you have entered for your publisher’s account is incomplete or not up-to-date. As a result, the payment process has been halted until further instruction is provided.






Here is the issue detail:

PLEASE PROVIDE CORRECT BANK KEY: 7 digits: 2 for Bank code + 5 for Branch code



Please provide us with the necessary bank information by logging into your account and entering the valid details into the required fields. We thank you for your assistance in this matter.






Regards,


OviPen


Ovi Publisher Support

http://publish.ovi.com/

Can somebody anybody tell me what the heck is a correct bank key???

Help!!