Tell them your routers default MAC as the MAC of your PC, that way you won't need an override, bad router or not.
I dont think they'd do that, and I wouldnt know how to get the MAC of their router. It's their routers, not mine.
The way it works is: We make an account with them, and on their website, we input up to 3 different devices' MAC addresses to be linked to our account. BTW, their website is the only page I can get to when my internet goes out. I just go to their site and update my MAC addresses and I'm good to go again, for a few hours.