Frustrated

I joined Fed health Nov 2018. A few days ago I discovered the agent who assisted me when I signed up gave me incorrect information. Now I am stuck with a medical aid plan that does not suit my needs. I contacted the agent Neo, he admitted he omitted some information. Him and his manager Jackie apologised, I informed Jackie that I could not continue with fedhealth because the plan is now costing me more than what I was quoted. I requested that they give me what I signed up for or give me my money back. I have had no feedback. I'm very frustrated because I really need medical aid and for now I'm stuck with an expensive hospital plan I never wanted.