If you ever happen to find yourself in really serious phone trouble, here is a smattering of trusted places to check out for help with your Android tablet:

Cellular Providers
Provider Telephone URL
AT&T 800-331-0500 www.att.com/esupport
Sprint Nextel 800-211-4727 mysprint.sprint.com
T-Mobile 800-866-2453 www.t-mobile.com/Contact.aspx
Verizon 800-922-0204 support.verizonwireless.com/support.html

Tablet manufacturers

Google support