The RUBIK is a 9 numeric digit bank identification number in Russia.
The form will require you to select whether your bank account is a corporate or personal account.
If your account is a corporate account, you will need to complete all fields including the INN and the KPP fields. The INN is a tax identification number. This should be 10 digits or 12 digits. The KPP is the tax registration reason code. This should be 9 digits or have the format 0000PP000 (P could be a digit or capital latin letter).
If your bank account is a personal account, you must complete all fields except the INN and KPP fields.