The status of transmitted faxes in Fax.Plus depends entirely on the responses received from the destination's fax machine. If your fax has been successfully transmitted (as indicated by the status in the Fax.Plus notification or your Faxes tab), it signifies that the destination's fax machine has confirmed the successful receipt of your fax.
If your intended recipient is asserting that they haven't received your fax, there might be two potential issues to consider:
You could potentially be sending your fax to an incorrect number. It's important to verify the accuracy of the country and area code you've entered for the intended recipient's number.
Keep in mind that the time it takes for your fax to be printed can vary based on the technology being used by the recipient's end (fax machine, fax modem, online fax, etc.). Additionally, there's a possibility that their machine might be temporarily out of paper or toner, which could result in a delay in printing your fax.