TELKOM DOESN't WANT TO CANCEL EXPIRES ACCOUNT

I have been trying to cancel my telkom wifi mobile router for the last 3 months, first i went into the store where they told me they can't assist as I need to log a call with the call center first. I went home and did as I was told, only to find out that I need to go back to the store as they need to cancel my already expired contract with telkom. Went back to the store stood in a que for almost 3 hours for them to tell me sorry do it online by sending a email. Needles to say i received a call today saying i owe them money. Ironically they want to know why people aren't interested in their service. CANCEL MY ACCOUNT