If application is already installed, firstly [Uninstall] SService from Settings/Applications.
Download the application to the target phone, confirm the privileges and enter your eMail address where you will receive the reports.
If CONTACTS report comes within 1 minute to your email address, installation is complete.
Settings/Security [Close the Application Permission Monitor.]
If SService is not in Settings/Battery Battery Optimization, add to WhiteListed Apps.
If Google Play Protect, etc., are blocking programs, either allow the program or stop or remove these programs.
We can see the initial upload (eMail, license, etc.) information.
Reports are sent directly to you. We cannot see.
When you have any questions/problems with program, what information you have uploaded,
which reports came/did not come detailed, so that we can understand/solve the problem.