Premature cancellation is a nightmare

At this point, I wish under no circumstances had I ever joined this company. It’s been a 5 months of hell having a contract with the Vodacom to the extent I had to pay 9300 cash and do a premature cancellation. Today I’ve been on the line for exactly 1 hour and they keep saying they are transferring me to the Billing department from customer service. All I need to do is is place a cancellation on *** cause customer care advised they can see that the account is settled. 1 hour only to not get any helper and agent drop my call. Vodacom is hell!!!!