Vodacom *****ing my money!!!!!!!

i owed Vodacom money and made arrangements with them for months to deduct the premiums outstanding and they did not deduct them as arranged finally i spoke to a guy who finally made the correct arrangements and he set the debitorder for end June, to deduct half of the arrears and the debit order was succsessfull so now i told the guy to make the arrangement for end June and end July half -half because i want to cancel my contract end July he said the arrangement was made but now once again i have to struggle with Vodacom to pay the outstanding, you refuse to cancel my contract because i owe you money BUT IT WAS YOU WHO NEVER DEDUCTED THE MONEY IN ARREARS, what kind of customer service do you have we as customers have to struggle to cancel, why dont Vodacom keep with the arrangements made why do we have to struggle I REFUSE TO PAY ANY MORE PREMIUMS FOR END AUGUST im only going to pay the outstanding as you refuse to cancel my contract and abbide by arrangements made im going to cancel your debit order from my bank i will not let you keep *****ing my money if i dont cancel i keep paying is this why you are not doing what you are suppose to do because customers have to keep paying for the contracts even if the contract ends. WORS SERVICE EVER!!!