There is no requirement under South Carolina law for an employer to provide employees with breaks or a lunch period.
Neither the Fair Labor Standards Act (FLSA) nor Georgia law require breaks or meal periods be given to workers. However, many employers do provide breaks and meal periods. Breaks of short duration (from 5 to 20 minutes) are common.
In most states, breaks are required by law. The employer has to, by law, enforce that employees take those breaks. If they fail to do so, it opens them up to very expensive lawsuits. I recall a decade or two back, The Gap has a massive settlement in the state of California over employees working through breaks.
No, there are no break requirements for employers in South Carolina.
The law does not provide employees with an explicit entitlement to a meal period. Each agency has the authority to establish its own requirements for meal periods. An agency may require or permit unpaid meal periods during overtime hours, and the policy may be different from the one for the basic workweek.
There is no requirement under South Carolina law for an employer to provide employees with breaks or a lunch period.
The Occupational Safety and Health Administration (OSHA) has neither researched nor issued standards requiring that workers be permitted lunch and rest breaks in the course of their workday.
If HR won't help you, go to your local labor board and report them. And if you do go to your local labor board, talk to a lawyer and let them know what's going on. Also, try and take your 30-minute breaks to show that you're following the law or at least trying to. Plus, it'll give you more evidence against your boss.