In the Wingman app, the entries have to be unlocked and marked as 'Not uploaded', to allow them to be uploaded again. Deleting data from your eGCA profile would not be reflected in the app.
To change the eGCA verifier, please follow the given article for the procedure.
To unlock the entries in the Wingman app follow the steps given below.
1. Go to My flights page and click on the intended flight. The flight details would show up.
2. Click on the 'lock' icon as shown to edit the flight and click on 'show' for the eGCA details to be shown.
3. Mark the flight as not uploaded and press save.
4. The green chevrons that denote the flight as uploaded, will be removed
4. Go ahead and re-upload the flight(s)