I just received a follow-up response from Digi-Key.
They refunded the cost of the five LGX capacitors from my previous order.
I appreciate that, but initially, I requested of them just to send me two "newer" capacitors out of the five.
Anyway, they also said that I can request capacitors not to be older beyond a certain date by using the "Order Note" comment section when placing an online order.
From the responses I've received on EEVblog.com, there wasn't much to worry about concerning the 2012 capacitors, so I have no problem either.
All is good and I do very much appreciate the help from the EEVblog.com community.
You didn't have to go that far Digi-Key, a small credit towards my next order would have been just fine, but thank you too!