2018 Volt Lease -- How does this look?

Seems like a few months ago I was seeing much better deals on the 2017 Volt leases. I had heard it was best to wait till the end of the year to buy a car, but seems maybe not so with leases. Any helpful information in deciphering the quote below would be appreciated.

You only getting $3629 off msrp. I’ve seen rydell ad with $5100 off.

Also it appears your rebate is $500 less than Chevy sales girl spreadsheet. You don’t have current lease?

No Current lease. Where does the rebate come in? Does that come off the MSRP or is that money you get back? (sorry total newbee to this process) - I will check out Rydell’s specials. thanks.