wordpress. Which extension will help the user and the administration to communicate securely?

Question

WordPress

Is there an extension for WP that allows the administration and users to communicate, while maintaining the history of private negotiations and the ability for users to link personal files and upload them to the hosting.
The task is to organize the reception of files from site users, while communication should occur only between the administration and users.

Answer 1

The sea of ​​such, for example codecanyon.net/item/supportezzy-ticket-system-word...

Answer 2

For an udder? Well, you could say that.
The plugin you specified has a live preview, that's where I felt it.
The curvature lies in the following points:
- It is absolutely not clear how to select tickets, at least on a mobile platform. A simple tap does nothing. Double tap is the same. The ticket is selected (with a certain probability) if you chaotically hammer on the ticket.
- Layout is sprawling, preloader animation plays in the menu area
- No file type is applied to any attempt to add a file, an error pops up - "Invalid file type"
- Scrolling of an open ticket is inadequate. It is not possible to scroll the ticket to the end the first time.
- Incomprehensible empty fields and single characters in the layout of an open ticket
...
As for the ticket system, logically, tickets are units for solving a problem, one ticket is one problem. In principle, such a system is acceptable, although it seemed to be something in the form of a user's office with a message box.