Soooo I unfortunately had to close my coworking space, DaniPad, for who knows how long. #coronavirus

With no income, I want to temporarily suspend the $600/mo we are paying for business-class Verizon Fios. The online portal says you have to call on the phone to make these kinds of account changes. The phone has a recording that says that, due to the pandemic, no one is staffing the phone lines for account changes.

I can't afford this!

Registered letter perhaps? Anything that you can use to legally prove you gave them notice should do.