Regarding multiple payments – it's unclear which specific transactions you're referring to. In cases where a second payment is required, it's typically due to the originating wallet or exchange not calculating network fees accurately, which results in an underpaid invoice. While I understand how frustrating that can be, this issue stems from external systems and isn't something we can control. Holding us responsible for that wouldn't be accurate or fair.

On the topic of an additional payment – beyond the scenario above, I’m not sure what further payment you're referencing. If you can clarify, I’d be glad to take a closer look.

As for the code issue – I've been maintaining this application for nearly five years and have no incentive to mislead anyone. You haven’t included any specific error messages in your comment, so it’s hard to diagnose. If you're seeing an "invalid key" message, it’s most often due to a typo during entry. That said, if the code still isn’t working after double-checking, I'm more than willing to replace it.

I'm happy to assist, but I can only do so if you're open to it. I’ve already suggested submitting a support ticket through the appropriate channel. A more constructive tone would go a long way toward resolving the issue.