then if you have a valid visa you can extend by 30 days. And if eligible based on passport you can leave and "border bounce" for an entry with no visa. But you didn't say what passport you have.
a visa run means you go apply for a visa via a Thai embassy. Check if your passport country is ok for visa-exempt ( no visa) entry of 60 days and do a border bounce.
so you're now in on visa exempt? So no visa, but can stay 60 days and can extend by 30. That should give you time to get DTV corrected if it was their mistake.