Yes, it's entirely my fault that the account has lapsed: I took a bit of a sabbatical for full-time grad school, and it was a very busy few years.

But how crazy is it that an email marketing company thinks it's a good idea not to inform users before an account is deleted? At the very least, you'd think they'd use it as a scare tactic to drive paying customers back to the product: "If you don't send a campaign in the next X days, we'll delete your account!"