I looked at the list of transactions:
"AppStore environment" there is probably a problem with the following:
Free Trial subscription automatically changes to status:
( “Disabled the auto-renew status for an active subscription.” webhook type: “CANCELLATION” )
Because of this, after the Free Trial period expires, no funds are debited.

Help me to understand. “Also rate the screenshots” 
I did not find more detailed information about the "Opted out of renewal" status.

(Testing use case, Auto renewable, works in the TestFlight environment )

Use case: User subscribed to "Free trial - 7 day"
____________________________
Expectation:
INITIAL_PURCHASE
( 7 days)
RENEWAL

CANCELLATION

EXPIRATION
____________________________
Reality:
INITIAL_PURCHASE
( 2-3 days)
CANCELLATION
( 7 days)
EXPIRATION

I think in some of the screenshots the funds should have been debited. but it didn't happen.