I didn't want to answer this since you asked Chris, but I feel you were given erroneous information originally.

Once the miles have transferred, that package cannot be returned for credit. The part that doesn't make sense is a Cat 1-5 + 120K miles is 230K points and a Cat 6 + 120K points is 250K miles. Those hotel award stay portions can be returned for 45K points or 50K points respectively, but that's not enough to help you.

Unfortunately, you'll have to waste the last four days of that certificate, and cough up the points for the other stay or pay for the other room.

Billy