Not receiving callback on "/v0.5/users/auth/on-confirm"

Not getting callback on “/v0.5/users/auth/on-confirm”
I am using user-auth APIs to get user information, including demographics.
the flow is:
/v0.5/users/auth/fetch-modes;
/v0.5/users/auth/on-fetch-modes;

/v0.5/users/auth/init;
/v0.5/users/auth/on-init;

/v0.5/users/auth/confirm;
/v0.5/users/auth/on-confirm,
I receive callbacks for the other APIs, but not for “on-fetch”; even though the response to “/v0.5/users/auth/confirm” is 202, I am still unable to receive the callback.

This is the curl for the “confirm” API, and I am getting 202.
curl --location ‘https://live.abdm.gov.in/gateway/v0.5/users/auth/init’ \ --header 'accept: / ’ \ --header ‘X-CM-ID: abdm’ \ --header ‘Content-Type: application/json’ \ --header ‘Authorization: Bearer <currrent_access_token>’ \ --header ‘Accept: application/json’ \ --data-raw ‘{ “requestId”: “16e48bb4-37a4-462f-99a3-2647436e6fd4”, “timestamp”: “2024-04-23T09:14:13.619000”, “query”: { “id”: “@abdm”, “purpose”: “KYC_AND_LINK”, “authMode”: “MOBILE_OTP”, “requester”: { “type”: “HIP”, “id”: “<facility_id>” } } }’