i've lost an account in deal on SCC , i don't know how to connect to their IRC, somebody please help me.

you need registered nick.
Server: irc.sceneaccess.org, Ports: 6667, +7000 (ssl)
Channel: #support

Register: /register <password> <your@email.com

So it would look like this

/register post101 yourpassword yourEmail

Once your in irc type, #support and click enter

This will bring you to the correct channel

or if what post101 said doesn't work (because of some different client), try this
/nickserv register <password> <email>
After that you can join the channel by
/join #support