No response from vodacom

I have been attempting to cancel my expired wifi contract since the 1 June 2021 and have sent 5 emails to date over the month of June. . I have had no response to my numerous emails. When I contact the cancelations number I am prompted to input a cellphone number which vodacom has been unable to provide me with despite my numerous requests. I have a solutions ID which is 2-***. I have done follow ups on email ***@vodacom with no response at all. Phoning the cancelation doesn't help as they can only assist with a cell number. I am not utilizing the wifi for this month as I have given a full calenders months notice and I have cancelled my debit order as well. This will be an issue as I have 2 other cellphone contracts which are on month to month but I am prepared to cancel all contracts with vodacom due to the high value charged on the wifi contract which expired in February this year. Please can I have urgent feedback. Thank you.