Pathetic service

I called vodacom on Tuesday to find out about my contract if it's still on month to month..to date no reponse as I want to cancel all my contracts with this company thta refuses to upgrade my 2x contracts yet since June I have been getting calls to upgrade. Now when I really need a new phone I am rejected.. 21yrs of being a customer and being tested like this is disgusting.. I want all my contracts cancelled and will go to another supplier that has offered me a contract.. I want a Senior Manager and not any staff contacting me as I want these 2x contracts cancelled with immediate effect..