First rung on the VDB chart for accommodated outside of two hours or not confirmed at time of offer is $600 SLV + SLV for one way fare (including taxes and fees). Your points PNR has a value listed within the redemption transaction in your account. This info is available to Customer Relations, but I don’t think it shows to the Customer. It’s also listed as roundtrip if purchased that way, so there might be some calculating needed for a one way. Also, what the others who volunteered got will be in the denied boarding tool Customer Relations has access to.

As for companion/zero-fare tickets, there is a resource (that could be outdated) that says the one way fare will be compensated based on the lowest commercial fare paid for the same segment.

TL/DR: you are due the value of your one way fare plus the $600