Hi,
Thank you for posting in Symantec community.
I would be glad to answer your query.
There are multiple ways to reach Symantec support
1) Most easiest if impact is less - Create a web case
How to create a new case in MySupport
http://www.symantec.com/docs/TECH58873
2) If impact is high call Symantec support immediately to get the resolution.
Regional Support Telephone Numbers:
United States: 800-342-0652 (407-357-7600 from outside the United States)
Australia: 1300 365510 (+61 2 8220 7111 from outside Australia)
United Kingdom: +44 (0) 870 606 6000
Additional contact numbers: http://www.symantec.com/business/support/contact_techsupp_static.jsp India: Toll-Free 000 800 4401 456
http://www.symantec.com/support/assistance_care.jsp
OR
Technical Support
http://www.symantec.com/business/support/contact_techsupp_static.jsp
3) Also can post a query on Symantec fourm. Symantec employee,End users,Trusted advisors and Technical Support team will try to help you.
4) For U.S region company has recently started Chat Support as well.
Choose the best way to contact depending upon the impact of an issue.