Its not weird because it likely isn't on the internet.
We don't know how long it will be before it will be available on the internet, if ever. There's not a single repository for every single piece of information that is "publicly available" and released by congress.
However, what is weird is your refusal to accept that Mike Pompeo did say as part of public record that he received said subpoena. Your beef really is with him. After all, he's the one that said this, not me:

Still waiting for your proof of Pompeo saying Bigfoot is real...
No it is definitely weird, because if it existed I am sure the three of you would not be able to resist posting it here. You are the one holding the premise that the subpoenas exist. Mike Pompeo is irrelevant.
If it
existed on the internet, then yes, we would have. Just because something doesn't exist on the internet doesn't mean it doesn't exist. You really have completely fallen into a flat earther type argument where if somebody can't prove something to your liking then the earth must be flat. Mike Pompeo can't be irrelevant because he is the one who received said subpoena, as acknowledged in his letter to the house committee:

What is he talking about if he didn't receive a subpoena? Is he lying or is he wrong. Just answer the question instead of trying to conflate it with Nancy Pelosi, the White House, or Bigfoot.
"Mehhh... I don't have to answer any questions!"
If you weren't a such an empty flapping sack of dishonesty then you would just answer them.
That looks like a "repository for every single piece of information that is "publicly available" and released" by the house. Interesting.
Surprise: its not.