We're you one of the unlucky people that ended up with an iPhone with an Intel modem? Have you tried it in another device, like an S10 or something? Urban coverage is susceptible to congestion and interference that can cause little pockets of no service in the biggest of cities.
Hey there! We have three towers in the area that are currently undergoing modernization upgrades. While this is going on, your signal may be impacted. From the info I have available, the upgrades should be complete within the next two weeks. If you still have issues with your signal after 11/8, I recommend contacting us over the phone or working with T-Force via Facebook or Twitter to have a service ticket filed with our Engineers.