Phone Verfication Auth is not allowing to Access data in Firestore

I am facing issue with Getting Data from Firestore

Error : FirebaseError: Missing or insufficient permissions.

After changing the rule to below

service cloud.firestore {
match /databases/{database}/documents {

match /{document=**} {
   allow read, write: if request.auth != null;
}
}
}

Below is the Function from where i am trying to Call the database

async handelSearch(searchTerm: any) {

onAuthStateChanged(this.auth, async (user) => {
  if (user) {
    // User is signed in, see the user's uid
    console.log(user.uid)
    const querySnapshot = await getDocs(q);
let temp: any[]=[]
querySnapshot.forEach((doc) => {
  // doc.data() is never undefined for query doc snapshots
  temp.push(doc.data())
});
this.serachBarService.MemberList.update(() => temp);


    // Access and modify user data here
  } else {
    console.log("No auth")
    // User is signed out
  }
});
}

I am successfully able to console log the User ID also Authentication seems working fine to me don’t know what’s missing while accessing the firestore.
I am working with Highly sensitive data here so can’t run database in Test mode

Any help is Appreciated, Thanks in Advance.

UPDATE :
I tested this in Emulator, Rule is working correctly there