Opting out the 2013 upgrade

Is there any way to Opt out the 2013 upgrade? Since my 2012 was upgraded to 2013 Ihad nothing but trouble. Symantec did not tested this release enough and made me a beta tester without my permission. The last problem today was the Identity Safe making Internet acces unresponsive and crashing. Therefore, tech support was not accesible I want to to install back 2012 and not have the upgrade. Is is possible? I still have a few months left on my subscription. TIA.