FNB Trash service

Haven't received services from any company as bad as fnb before.I made online purchases and all of them declined .Each time my available balance decreased and each day my current balance decreases.I called them for assistance each time no one knew anything about it ,they kept transferring me to another department ,and after reaching someone in another department the phone gets hung up in my ear.I spent an hour achieving nothing and wasting almost R300 airtime to find out nothing and still had no answers to what happened to my money .