Yes, they'll need it.

That's what I do. Especially with my physical ppwk.

What's the swill?

What's the best course of action if you think you got skipped over on a greenslip? thx

Skeds, skeds supe, MEC skeds guru.

Keep in mind that even if the person who got it shouldn't have, that doesn't necessarily mean you should have. If it was assigned improperly, and if you should have gotten it, I think after the fact you'll just get single pay (and no PB days if on reserve).

I'm on step 3. I got a stern talk about having a blanket green slip from 1-30 from step 2.
I turned down a GS due to a prior commitment with my son. Later in the day another GS popped up and they used the previous GS response for the 2nd GS without calling me. That GS ended 3 hours earlier and I would have been able to do it. Was told by step 2 that because I said I have a childcare issue I was unavailable those 2 days for anything else.

You're handling it in the right way, but the scheduling supe has a contractual point. Make sure your GS request reflects your real wishes or don't acknowledge/answer the phone. The following is from the Scheduling Reference Handbook, available on the DALPA scheduling committee page:

Green Slips are manually processed by Crew Scheduling according to the limitations and preferences entered into PCS by the pilot....

• Crew Scheduling will attempt to notify the pilot of a GS/GSWC award. A GS is not a proffer and the pilot is required to fly the rotation if he acknowledges the award. If unable to contact the pilot, Crew Scheduling will bypass the pilot and move to the next eligible bidder. Crew Scheduling is required to allow the pilot a minimum of ten minutes to respond if the departure is greater than three hours from first attempted contact. High call volume and long hold times may make it difficult to contact Crew Scheduling by phone. If return contact by phone is not possible, the VRU or iCrew should be considered as alternate methods of acknowledging the award.

I have Google voice as my first # so I heard the message while he left the message. When they called my second # I answered only to turn down to be polite. I learned my lesson to ignore and never answer a call from them

There are some outs, but a personal scheduling conflict isn't one of them. Again, from the SRH:

A pilot’s obligation to accept a trip on X days or regular line off days is not absolute, regardless of whether the trip is or is not a proffer. A variety of circumstances might prevent a pilot from accepting a trip.
For example:
• Not being physically located so as to be able to report.
• Having recently consumed alcohol.
• Lack of available child care.
• Lack of available transportation.
• Not being adequately rested. For example:

• A pilot, not on call, notified of a rotation with a report time within 10 hours should consider if he is sufficiently rested to accept the scheduled rotation.
• A pilot is not required to accept an inverse assignment that does not allow for 10 hours of rest between acknowledgement and report time for the assigned rotation.

The existing GS PCS system is STUPID and needs to be changed. PERIOD.