Forums
Other people may have the same problem you do, check the 24-Play forums to see if the solution is already available

IRC
An easy way to get an instant response to your query using IRC chat software. Join us at #24-Play @ Quakenet.org.

FAQ
A lot of the simplest answers can be found on the 24-Play FAQ section

Tickets
Alternatively you can log into 24Control or your billing account and submit a support ticket there (Gamers please use 24Control so we have all the relevant details)