DO bills in arrears, so it’s stuff they already delivered and have not been compensated for. To my knowledge DO will keep your system alive for like 60 days for resurrection after you stop paying (ask me how I know). Some companies, like Meraki, are pretty flexible when you need an extension of time, but to my knowledge it’s limited to twice per customer lifetime. But there you have customers with significant investment in equipment with much to lose if they don’t eventually pay. DO’s customers are far less sticky and there’s really nothing securing their commitment.