Cancellation of new contract

I took up a router contract with Vodacom since my data depleted quickly, not really sure how their data pricing plan works regarding usage. But I decided to call in so I have the contract cancelled (It is still within the 14 day window), I called and they referred me to another department that deals with cancellation of specifically new contracts which I did, the number I was given is " ********** ", I called and it sent me through to voicemail.

I had doubts that this couldn't be "after sales" number. I called the center support again and they gave me a different number, I asked about the first one and the agent simply hung up, I had to call again the third time and I was given a third number to use, I called and it went through but was told that the system is offline. I never knew I would have to go through so much hassle JUST to cancel a contract, one would think canceling a product would be as easy as taking it up, I am just tired of being ********** by this cellular provider, if it is not data then it is a screen repair contract (which I cannot cancel because it does not appear under my account but the debit order still goes through).