You can enter both your credentials in the EE profile. The system will automatically consider it as "Two or more degrees".
You must have ECA for both the degrees (shouldn't matter even if both degrees aren't mentioned in the top summary of your report, so long as both the degrees / credentials have Canadian Equivalency and are from a Recognized Institute). I see no harm in taking the shot that way.
WES isn't addressing such requests these days to provide the revised reports, however no harm in trying. It took 4-5 requests from me to get the revised reports (just to mention it in the top line summary).
Hope this helps. Good Luck!