Weekly data refreshes on Rockstar's reset (Thursdays). Pull down to refresh in-app; if it persists, email support@gxcompanion.com with a screenshot.
How do I delete my account and data?
In-app: Settings → Data & Privacy → Delete Account. Removal is immediate and propagates to backups within 30 days. No app access? Email privacy@gxcompanion.com from your account address.
Notifications stopped working
Check your device notification settings for GX Companion, then in-app Settings → Manage Permissions. Re-toggling notifications re-registers your device.
I found wrong vehicle or weapon data
Tell us which item and what's wrong via support@gxcompanion.com. Corrections usually ship in the next data update.