Hi guys,

Looking at a SAS GO SMART fare for EU-US flight.
The return is open, so I'd like to have the option to change the flight, but at 400 EUR upcharge to SAS GO PRO, it seems that the change fee might be the better option (and fare difference is paid either way).

However, I could only find the change fee for EU flights, and customer service number is no longer active (at this time of the day).
Does any of you have an idea how much it would cost to get the ticket changed?