I was browsing the LOTRO store when I saw the Expansion Quad-Pack, I was amazed by the price that was only 17.99€/19.99$ as shown here:

But then I explored some more and I saw the exact bundle but with a different price of 35.99€/39.99$:

my question is: what's the difference between the two Expansion Quad-Packs available at the store? Am I seeing it wrong or am I missing something?

Please if someone could clarify this for me I would be most grateful.

Thank you in advance!