If you're having trouble logging in, you may just need to clear your cache from your GCash app.
If you're an Android user, follow this guide:
1. Go to your Phone Settings >> Apps >> Manage Apps
2. Search GCash
3. Click Storage
4. Depending on the device, you'll get the option to click on Clear Cache right away or you need to click on Clear Data >> Clear Cache
If you've performed these clear-cache steps but still can't log in, there may be an ongoing system maintenance which you will be notified in-app or you may be affected by either one of the following:
1. Device compatibility issues
Try uninstalling then re-installing the app.
2. Out-of-date app version
To check if you have the latest version, go to your Google Play/App Store, search GCash and tap on the GCash icon, tap on About this App and scroll all the way down to check the latest version under App Info.
3. Other account-related issues
If you have multiple accounts in GCash, try switching from one to another account at log-in. Just tap "Change" on the upper right side of your screen and re-enter your mobile account number.