XRE-00088 - activation team member claimed they could not hear me and ended call after 20 mins of troubleshooting

I was recently provided a new box to replace my older hardware. Note: This is not the main “gateway” box but when finishing the set up I receive an XRE-00088 error code. I called support and confirmed the serial number of the older unit when speaking with “John” on the activation team.  He walked through the steps to reboot and send signal several times including the main box.  Eventually, he claimed he could no longer hear me on the phone despite having no issue for the 20 minutes we attempted to troubleshoot and said that he would end the call if I did not reply. My phone was not on mute and I switched to speakerphone and made another call directly after this and there was no issue with the other party hearing me. I suspect he had no other options to support me and bailed on the call as the average handle/call time was getting long with no resolution available to him. 

Any advice on what should I do now?