Please follow the below steps:
1. Go to settings. Select the Application manager, where you can see all installed applications in your phone.
2. Select the freecharge App in that list .
3. You can see the Button named “Clear Cache” ,Click on the button .
After doing this application, cache memory will be deleted and try after few hours .
In case the issue still persists , Please give us the below information:
Handset model name
Handset model number
Network 2G/ 3G
Direct contact number