Cannot get IPv6 to work on Business Fibre Internet 3G

I recently had Business Fibre Internet installed in Coquitlam. I have the Nokia XS-230X-A ONT which I can plug directly into my router or into a switch and then have multiple routers connected the switch.

For IPv4, this setup works great. I have one router for my home use and one router for my business use. I am getting very close to 3 Gbps through both routers.

Previously, when I lived in Surrey, I had a very similar setup although only a single symmetric 100 Mbps pipe. At that time, there were no issues getting IPv6 to work on both of my routers. 

This time around, I have tried two different routers with no success. Router 1 is a Unifi UXG Fiber and Router 2 is a pfSense In both cases, I have set the routers to request an IPv6 prefix using DHCPv6, size 56, and not wait for an RA

Given an almost identical setup between the two locations (Surrey and Coquitlam) I am quite surprised to see no IPv6 support in Coquitlam despite it working when I was in Surrey not too long ago.