Hi there! I understand you're having trouble signing up for the Spark Driver app on both your phone and computer. Let's figure this out together.

First, could you share a bit more? Are you seeing any specific error messages when you try to sign up? Also, what type of phone and operating system version are you using? That info will help me narrow down the issue.

Meanwhile, here are some initial steps you can try:

1. Check Device Compatibility and OS Version:
The app requires a recent version of your phone’s operating system. For instance, Spark Driver is no longer compatible with Android 10 or older. On your Windows computer, make sure your browser is updated.

2. Clear Cache or Try Another Browser:
If you are signing up via the web on your computer, try clearing your browser cache or using a different browser like Chrome or Firefox.

3. Reinstall the App on Your Phone:
Uninstall the Spark Driver app from your phone, restart your device, then reinstall it fresh from the app store.

4. Internet Connection:
Ensure you have a stable internet connection since interruptions can block sign-up processes.

If you’re still stuck after these, we can try to dive deeper, like checking for server issues or trying the sign-up on a different network or device.

Could you please let me know what you’ve tried so far and what error messages you may have seen? That way, I can provide more targeted support.