Vodacom is a ****

Vodacom is a ****! I cancelled my fibre last year and they are trying to bill me this year saying i havent paid them in over a year. I literally cancelled and they have been sending me invoices with a 0 balance. They just decided to wake up one day and say i owe them 900 bucks! Seriously? They never ever tried to debit anything for an entire year then they send vvm or whoever those people are to harrass me.no man