Debit order

Every month I pay my account cash at Vodaworld. Vodacom is refusing to cancel the debit order although I told them that i have closed the bank account. Now I received an sms stating that I must pay R85.00. I'm refusing to pay this amount because my account is not in arrears. I will not renew my account again. I'm tired of being bul**** by Vodacom. It seems as if I sold my soul to Vodacom when i did an upgrade.<br> <br> I will never take a contract with Vodacom again. This company doesn't care about its clients.