As a fraud prevention measure, Blackbaud Payment Service (BBPS) automatically prevents additional payment authorization attempts from being made from IP addresses that have produced repeated transaction authorization failures. IP addresses are automatically blacklisted after 5 failed attempts through BBPS, for example mistyping of credit card or expiration date, invalid card, etc. within 12 hours.

If you need an IP address removed from the Blacklist, Click Chat with Support and reference this article. Please be prepared to share the following information with Support:
  • The IP address that has been blacklisted