Bad service

Received a call today from vodacom upgrades to upgrade a data line and I requested for it to not be renewed but rather changed to prepaid I was then put through to the cancelations department to request a cancelation Spoke to Layla Nkosi who did not even give me chance to explain my request to her I then asked her to put me through to her service rating option and she left me on hold for atleast 2-3 minutes Came back to me and then told me she id try to do my request but her system gives her an error of 70 days waiting perion I should call back end of November. Which I dont mind doing But had she listened to my request the 1st time round she could have probably told me that 1st time round I then ask her to for the 2nd time to please put me through to her service rating and she then drops the call in my ear. I have been with Vodacom for +-10 years if not more And I can not wait to cancel my contracts because the service is absolutely nonsense