Billed for airtime

I have an account with edgars and I raised a complaint that I was billed for airtime that I never subscribed to and never received. My total interest is calculated based on the balance owing. I raised the matter with the cell phone and airtime department but no one came back to me. I want all the incorrect billing including the linked interest reversed and a detailed statement that shows the reversals must be shared with me. Stop ripping the vulnerable consumers and do what is right Edgars!