We're always looking for ways to help startups get up and running on our platform. If you're not a YC company, reach out to our customer success team. They can help you get started. If you're already a DO user, they can help you scale up.
Not a startup, but I was going to shut Go Report Card (http://goreportcard.com/) down because I didn't want to pay for it myself anymore, and I reached out to Digital Ocean and was given some credits to keep it running. Thanks.
In some way these guys are "investing" in these YC companies' future, hoping that when they grow they will stick with DO. YC has good track record so it's relatively a good bet, whereas if they did it with any rando startup, they'll probably lose tons of money (statistically 99% of the startups die). Remember this is a company not a charity.
As a founder, I've got sales guys cold calling and emailing me all day long. They are usually new, and completely disconnected from the realities that a startup founder faces. They also generally lack the authority to make decisions, so the call always ends up as a waste of time.
Who do you want to talk to then? Unless you're a big customer, the founder or VP of the company selling to you is probably (understandably) too busy to talk to you. If they really want your business, the sales person will escalate it appropriately. If they don't want it bad enough ... they won't get it.
https://www.digitalocean.com/company/contact/sales/