Hi there! It sounds like you've been having trouble logging in to your myPay Solutions app because the one-time code isn't working—and this has been going on for months with no response from the company. I definitely want to help you get this sorted out.

To start, could you tell me:
- How are you receiving the one-time code? (via SMS/text or email)
- Have you tried switching the delivery method if available?
- Are you able to log in using any other recovery options, like security questions or backup codes?
- Have you already tried account reactivation or password resets?

Knowing these details will help me guide you through some specific steps. In the meantime, I can suggest some common solutions that might resolve the issue:

1. Switch One-Time Code Delivery Method:
Some users have had success switching from receiving the code via text message to receiving it via email due to phone carrier delays or SMS delivery issues.

2. Check Device and Network Settings:
Make sure your device’s date and time settings are correct (sometimes incorrect time can cause code validation issues). Also, verify that you have a stable internet connection or good cellular signal if using SMS. Restarting your device can help reset network connections.

3. Reactivate Your Account:
If you haven’t used your account in a while, some services disable it. Reactivating might be necessary. For myPay Solutions, there are instructions on reactivating accounts on their website.

4. Try on a Different Browser or Device:
Since you're on Windows with WebKit browser, maybe try logging in on a different browser like Chrome or Edge to rule out browser compatibility issues.

5. Contact Support Alternatives:
Since you've had no response from the company directly, have you tried the customer center or help resources available on the myPay Solutions website? Sometimes contacting them via a dedicated support portal or phone number leads to faster results.

If these steps don’t resolve the issue, I can help you draft a detailed message to send to support or look up additional contact points.

Could you please let me know what you’ve tried so far or if you want step-by-step help on any of the above? That way I can tailor my guidance better.

Looking forward to your reply!