This service does not work, there is 1 support agent and he will have you send a test fax to him and tell you the service works fine. I tried multiple times to send my fax, and it failed. This is a scam, they are just looking for suckers to not do chargebacks or cancel their accounts, as you can only cancel if you call them.
I brought out my old sharp from 1990's, fax went right over after having to print it and rescan it at deathly slow speed, but it worked, and didn't eat $10 and disrespect me.