Hi there! I understand you're encountering an error or technical difficulties when trying to pay your Reliant Energy bill online through the app. Let’s get that sorted out together.

First, could you tell me if this issue happens only in the app, or are you also unable to pay through the Reliant website on your WebKit browser in Windows 10? Also, have you tried any troubleshooting steps so far, like restarting the app or clearing your browser cache?

In the meantime, here are some steps that often resolve these types of issues:

1. Restart and Update: Close the Reliant app completely, then reopen it. Check if there's an update available for the app and install it.
2. Clear Browser Cache and Cookies: Since you’re on Windows 10 using WebKit, clearing your browser cache can refresh stored data that might cause loading issues.
3. Try a Different Browser or Device: Sometimes switching to another browser like Edge or Chrome, or using a different device, helps isolate the problem.
4. Use Reliant’s Quick Pay Option: If you need to make a payment urgently, you can use the Quick Pay feature on Reliant’s website without logging in, here: https://myaccount.reliant.com/public/quickPay.htm
5. Check Reliant’s Service Status: Occasionally, online payment services might be down for maintenance or technical difficulties. You can visit Downdetector to see if others are reporting similar problems.

If these steps don’t resolve the issue, please let me know, and I can help escalate or guide you through alternative methods like paying by phone or exploring account-specific concerns.

Are you comfortable trying these steps now?