I posted the same problem , see post 19 & 20:
https://5thgenrams.com/community/threads/floor-mat-recall.26556/post-374577.
I just picked up the mats a few hours ago, gave them the old one and vehicle mileage, and got the new updated one. To recap, I called service, and they told me they couldn't replace because it wasn't part of the VIN #. I was PO'd and since this dealer is only 2 miles away. I went in there but went to the parts department, not service, with my recall notice #64 and talked to a guy I think was the parts manager. I showed him that the notice said the recall included mats that were not originally on the window sticker but were purchased from an authorized Ram dealer. I told him that the service said it wasn't part of the VIN and couldn't replace it, but he looked up my VIN number (bring that in with you) and found that in the VIN database, that my floormats recall, was in separate area. I bought these original mats from the dealer I bought the truck from and was included as an extra cost line item, although I had to wait to get them because they weren't in stock. If you bought these from a different dealer at a different time, you will need the receipt, but you still are entitled to a new mat.
Also you might try sending Katlin from RamCares a PM. I did that, but didn't need her help as I got it done on my own.