I want to share my experience. I am a long-time VPS client and managed to save $143.35 on my "renewal," paying $223.75 instead of $367.10 for the Tyro plan for a year.
I received a newsletter with the "Double It!" promotion and thought I was lucky since my rental period ends on May 19. I contacted support, but they disappointed me by saying that the promotion was only for new containers. However, I figured out a way around it: I created a new container and requested a migration. They responded positively to that. In the end, I paid $193.75 for six months, ordered an extension twice, plus $30 to the admins for the migration.
I've been working with the company for 3 years, and I always manage to find common ground! I recommend them, here is my referral link bit.ly/hostlife