marcelloc: I think you are not familiar with DSL Modem/Routers (Bell ones). Like I said, the pfSense WAN probably uses only the modem feature of the DSL modem/router to obtain another public IP. It has absolutely nothing to do with the other WAN even though it connects to a port labelled LAN on the DSL Modem/router. In fact, gateway is picked up automatically from ISP. Sometimes the public IPs are very different like 174.55.x.x and 94.22.x.x. I could be wrong on my assumption above with usage of the modem but that type of bridge mode is the only thing that comes to my mind.
CMB: I think you are right. Let's see if they complain again. And yes, I don't like GoDaddy either (They hiked my certificate price double after a year of subscription knowing it's freaking time taking to install that SSL certificate again….). No firewall changes been done. Bouncing is a problem of GoDaddy indeed.