How to add a contact to blacklist?
Some visitors don’t need actual help but are there to promote their products or spam. To clean your tickets from them, it is better to block them. Here is how:
Click on Contacts. In the left top corner is a list of your contacts. Search for the one you want to add on the blacklist and click on their name.
On the right of the list of contacts appeared your contact. In top right corner click Contact options. There is an option to block this particular contact.
After you block the contact near their there is the sign of minus, both in a list of contacts and when you open contacts information. Here is important to know that you can unlock them whenever you want, following the same steps.
Picture 1. Screen of blocking contact