Bad Service

I cancelled my data account with Vodacom due to not using it any longer. Since then both my numbers has been showing unkown incoming and outgoing calls. When I phone Vodacom customer cares tells me I have the service for free. They have now activated the \Caller line identity"and now the service is no longer free and still doesn't work. Phone settings has been checked at an Vodacom outlet \""Keywest\"" and they confirmed the hardware is not blocking any incoming and outgoing calls."""