How can I ensure that my users receive lightning payments?

I’m working on a side project that allows users to receive some payments from it. When a user clicks the button to withdraw money to a Lightning address, the web app sends a request to the host of that Lightning address to make the payment.

The transaction is completed and you can see that everything is fine.

But I run into situations where people say they haven’t received anything, even though the logs say it’s received and everything should be resolved.

I am aware that there may be shady users who claim they were not trying to get more from me when they actually received funds. However, it’s also possible that the user had technical issues or was inexperienced with Lightning and didn’t actually receive anything.

Therefore, we cannot say with confidence if it is a case of fraud or if there is actually a problem on their side.

Is there a way to protect and know if a user is trying to cheat on me or if I need help?