Service Delivery

I would like to to express my frustration regarding Vodacom as it comes to the lack of service delivery from numerous departments as i have been send back and forth regarding my query. I have been a loyal customer since 2004 with vodacom and now that i want to obtain a cancelation letter it has been an up hill battle. on the 1st of every month my debit goes off only to find out that the month of August it did not go off due to a system error that apparently deleted my debit order instruction eventually it was reinstated on the 4th of August to go off on the 5th of August by then i would assume that my account would be rectified only to call numerous times to find out that my account is still not updated an in arrears so obtaining a cancellation letter is not possible cause of the *********** people that works in different related department. Today marks the 7th day since my debit order went off only to find out that no one in Vodacom can assist me. is this the treatment one gets from your service provider? my request is that I am not going to be doing the run around for Vodacoms error an on which a customer wants to just obtain something simple to be finalised.