If you have an incoming call while you are on the line, the Call Waiting feature will alert you. You may then put the first call on hold, while you answer your second call. It will greatly reduce missed calls due to a busy phone.
You can talk to our Customer Service team using the online Chat tool or by using the "Contact Us" pages. Alternatively you can email us email@example.com and we will try to resolve your fault for you as quickly as we can.