Hey @Lindseymarie28 - sorry to hear about this.
Have you tried using our self-served look-up tool to identify the email address that's associated with your charge(s)?
If you did and it didn't help much, you can reach out to our support team directly through this form.
Just make sure to use an incognito window without signing into any Dropbox account and fill in all the relevant information.
I hope this helps and please keep me posted!