Apologies for the late response, I missed these replies
Quick update - I was never able to resolve this.
Ezoic and I spent hours and hours trying to resolve it & I kept receiving conflicting info from their team which made things more confusing ...change this DNS, move your domain, add this code, change that back, you shouldn't have done that, do this instead, no go back to how it was
They tried to make out that Squarespace was the issue, even though it was their code causing the issue, and the issue resolved itself as soon as the code was removed.
There final suggestion was to move my entire site over to word press because ezoic "doesn't work in squarespace".
Why they didn't mention that when I first signed up, or at any point during the hours and hours of troubleshooting, I don't know.
I signed up for She Media instead and they are really friendly and did all of the set up for me.