For Sedo you do not necessarily need to provide the Sort code, you can try the following which I have always done, and I have not missed revenue payments though wire from Sedo.
Account Number : Provide your current/checking account number
Sort Code : Provide your current/checking account number which is the same as above.
The reason for this is my Bank also does Not utilise Sort Codes (EU standard) or ABA Routing numbers (North American standards), therefore the bank transfer routing is through the bank account number. This has been confirmed by my bank (HSBC) and like I mentioned I have always received payment from Sedo this way. (Normally received on the 17th or 18th of the month)
This is based on the assumption that you use a current or checking account as this would not usually work out with a savings account.