Bad service

Recently i migrated from a premium package to a lower package .i voluntary stopped the premium package and all was well . The operator gave me an amount to pay which i did and all was ok . Next moment i am disconnected and informed that i am in arrears . After phoning i am informed that my debit order for insurance did not go off but my bank said it did . Now they want me to pay a reconnection fee . Why it is not my mistake it is their mistake . Go and fly a kite Multichoice .you are not the only supplier out there