Direct2Drive has been SNAFU lately. Reddit reports the same invalid Steam keys and suspended all their deal listings.
I can’t complete a PayPal purchase on D2D (“unverified paypal account” error), which works fine elsewhere. Their support instructions and email are worthless, as I had the same problem a week ago and they haven’t fixed it. Their “billing support” link at the time was to Stripe, a CC processor they no longer use, with website building instructions (now at least it’s a link to PayPal). The PayPal help which the error message sends me to asks me to click a “confirm card” link that doesn’t exist for a card I’ve been using there for years.
The sale lists Valkyria Chronicles 4 at $4, Total War: Rome 2 at $5.4, TWW2: The Queen & the Chrone at $2, and Yakuza 0 at $4. IDK if the prices are legit, or if they have genuine keys, or if D2D is just self destructing. Buyer beware.