Calls from landlines and mobiles are included in free call packages.Call charges are subject to change and this information is provided as a reference only.
They do often fix rare bugs, but to be honest, they just as often introduce new bugs.
For all three of the major manufacturers, you can enter the details of your adapter on the website and download the right drivers directly.
You also have the option of letting the site scan your system to automatically determine what drivers you need.
Calls maybe recorded for training and quality purposes.