issue with Instagram API with Instagram Login

We have passed the company verification procedure We have passed the application verification procedure Users are logged in and receive tokens without any problems. Tokens pass through the debugger, BUT why don't real users receive a web hook about incoming messages, and using the token we can't send a message!

{ "error": { "message": "Check if the access token has enough granular scopes for Instagram permissions for the Instagram Send API, or check if the IGSID is valid.", "type": "IGApiException", "code": 200, "error_subcode": 2534067, "fbtrace_id": "ACifIDXpTt9sBLaQGsq0kUz" } }

Only if we add a user as a tester, then we will be able to log in without problems! BUT how will we get passwords from all real clients???