As this is a community run forum the mods and members are unfortunately unable to assist with or answer questions in regards to account financials except for very basic details and/or to point you in the direction of the DigitalOcean support/contact section - https://www.digitalocean.com/company/contact/

Hope everything works out!

If you signed up with a credit card and a $100 promo credit, then the amount you’re looking at is a pre-auth, which is to test your card to make sure that it works, and no funds have actually been captured. A pre-auth generally clears within 1-2 business days.