We are very sorry a legitimate call was mistakenly blocked. In the year 2017, there was on average a 0.17% chance of a false positive.
We have a whitelist feature that will allow you to add these numbers so they will not get blocked.
You can add these numbers using the "Report A Number" feature.
Click "A Valid Number That Was Blocked Incorrectly" then input the number, and finally click "Send This Report"