Hi,
I've had several issues with inpost lockers not accepting Evri parcels.
After a little digging, I've found that they restrict some lockers to their own services.
For example I can think of at least 8 lockers near me and all but one accepts Evri parcels.
I now routinely check which is accepting by using the following link, just add your full postcode to the end, replacing the AB123CD
https://www.evri.com/find-a-parcelshop/?lockers=true&search=AB123CD
Hope this helps some of you.
Si