Advisors: "You need a Masters after completing a formal post bacc program." But do I?

Hello, I graduated with a 2.66 GPA and was advised to do a formal academic enhancer post bacc program. I am finishing the program this summer with 32 credits, all A’s. However, my GPA only went up about .23 points. As of now, my cumulative GPA is a 2.83 and I am getting mixed messages about completing a masters program. Some say I should, some say I don’t need it. So which one is it? Should I apply this year or should I do a master’s and apply next year? Thank you.