Pathetic service- cancellations/billing/accounts

Your service is absolutely shocking!!!! I called on the 28th of May to cancel my contract! I was told to phone back on the 1st! After trying to phone back on the 1st for 4 hours, and my number being blocked for phoning too many times, I then sent an email to vodacom retentions to cancel the contract! You guys acknowledged, sent a ref, but did NOTHING on your side! I then phoned again this week and was told that they have cancelled and was then bounced between cancellations to accounts to do the refund! I was given a name of a gentleman, Cello, who was supposed to call me back yesterday afternoon or this morning and I have heard nothing! The reference number I was given doesn’t even exist!!! I had to call again today to follow up on your mistakes and no one knows anything or can’t even see that any investigation has been done! I asked to speak to a manager and no one is available! This is unacceptable Vodacom! This is the reason why I am cancelling the contract because of your pathetic service! Please get your senior manager to phone me ASAP!!!