Phone and chat support is available in the following languages: English, French, German.
Email support for Dropbox Basic and Plus is available in the following languages: English, French, German, Italian, Spanish, Japanese, Portuguese. Enterprise email support is available in English only.

via Dropbox Customer Support Levels – Dropbox Community – 214386

Advertisements

Our customer support team is dedicated to helping you have a great experience using Dropbox. When you’ve got a question, we want to make sure we provide you with an answer. We put together this overview to help you understand the support options available. When you contact the support team, be sure to include all the relevant details that will help them resolve your issue.

Remember, any time you’re looking for help, you can always start by searching the Dropbox Help Center or the Dropbox Community Forum.

via Dropbox Customer Support Levels – Dropbox Community – 214386

Open your shared document and highlight a word or section.
Open the “Insert” menu and select “Comment” to leave a comment in the doc.
Add a “+” before your colleague’s email address in the text field. When you click the blue “Comment” button, your comment will arrive via email.

via Google