If the information was exchanged on the order page and it is necessary to complete the order, it is ok. If the buyer gave the information for communication outside Fiverr, you say it is against TOS.
Any communication outside Fiverr platform is forbidden by the Terms of Service. 👇🏻
To protect our users' privacy, user identities are kept anonymous. Requesting or providing Email addresses, s***e/IM usernames, telephone numbers or any other personal contact details to communicate outside of Fiverr in order to circumvent or abuse the Fiverr messaging system or Fiverr platform is not permitted.
Any necessary exchange of personal information required to continue a service may be exchanged within the Order Page.
Fiverr does not provide protection for users who interact outside of the Fiverr platform.