Trying to cancel a contract with Vodacom? Good luck.

In August last year, I spoke to Ms. Nkabinde to end a contract with Vodacom. I was informed to send an email closer to the date. You can only do it one month ahead of time. I send an email, got another account, and then phoned them. The Cancellation department informed me that I will receive another bill due to the fact that I send an email. You need to phone, no cancellations are done via email. In this day and age? This is not treating customers fairly.