Pathetic FNB Connect service

FNB Connect is of no help at all and their service suck. I have been holding the line for 20 minutes after talking to a consultant waiting to talk to a supervisor and all I get is music in my ear. This is very bad service and I am very disappointed in FNB after being a client for many years and doing all our banking with FNB this is what we get. How difficult can it be to cancel a top up sim card? We have been trying since last year November and we are still being billed every month for a card that is no longer in use.