admin page

I have a business internet gateway and I cannot make any changes on my device. Here is the reason, this dmb 5G Gateway now requires the app to make changes but if I try to use the app, I will receive a message saying I have a business account and I need to log in to the HUB, I log in to the HUB, there are no options to manage the gateway. I click on support, it shows only my reps, my reps are clueless on how to resolve this. Can someone look into this? It is crazy what you do to businesses...I have been already trying the ATT gateway, and I will be replacing them all… I am talking about 15 gateways.