Hi there! I understand the Uber Pro Card app is showing that it's under maintenance. That can definitely prevent you from accessing your account or using the app.

To help you better, could you tell me:
- How long has the app been showing this maintenance message?
- Are you unable to log in at all, or is the message showing after login?
- Have you tried any troubleshooting steps already, like restarting the app or your device?

From what I know, the Uber Pro Card app does occasionally undergo maintenance or updates that can temporarily prevent access. Sometimes it can also happen if there are account eligibility issues or server-side updates in progress.

Here are some steps you can try:
1. Close and reopen the app: Fully close the Uber Pro Card app on your WebKit browser or Android device and open it again after a few minutes.
2. Clear your browser cache: Since you’re using WebKit on Android 10, clearing your browser’s cached data can fix loading glitches. Go to your Android settings > Apps > WebKit/browser > Storage & cache > Clear cache.
3. Check for account eligibility: If you’re not eligible for the Uber Pro Card (for example, no longer qualified or there’s a hold on your account), the app can show maintenance or access restrictions.
4. Wait a bit and retry: Sometimes maintenance windows last for a short period only. Checking back after some time might let you access the app again.

If you’ve tried all this and still see the maintenance message consistently, there may be an ongoing system update affecting many users. I can help escalate that or guide you to Uber’s official support channels to confirm the maintenance schedule.

Would you like me to check the current system status or provide contact info for Uber Pro Card support? And do let me know about any steps you’ve tried already!