Hello and thank you for your inquiry!
We apologize for your frustrations. We suggest backing up all of your data and trying to perform a factory reset on your device. You can find factory reset instructions here: http://bit.ly/QKHNUb
If you need additional assistance please contact us again. You can also reach out to us via twitter or facebook for quicker responses.
Thank you and have a great day!
Samsung Mobile Support is now available on Twitter & Facebook!
Chat Support: http://goo.gl/ZALJm