Please cancel my insurance I cannot afford it

Hi Vodacom, hope through this portal i will now be assisted, this is now the 3rd month after I have asked you to cancel my insurance, i even have an SMS to prove it when after calling you for the second time you assured me you will cancel it guess what, my insurance has been upgraded and i have to pay more. After i have told you that i cannot afford it, please cancel my insurance, the last time we spoke i even requested a retrieval of the last phone call since that is what we are promised every time we get to call you, they asked for my email so that they will send the recording, afterwards they sent an SMS to confirm the cancellation of my insurance. now I see already it is on my bill and will have to pay it with my June bill, please can this be resolved and my bill fixed for the month of June