No response from Vodacom at Fibre Cancellation Requests

It is very difficult and often frustrating to cancel a Fibre contract with Vodacom, especially when one is not in South Africa. I sent an email on 18 Jan 2020 to cancel the contract, as well as a follow up email on 29 January on the *** email address and to date there is no response from the company. Why is this the case? Most frustrated by the lack of quality service from Vodacom. Emails were sent to ***, *** and to ***