*****elent sale,Unauthorized upgrade and Poor service

I requested a cancellation December. I'm getting a invoice sent from January for a phone that had to be canceled end of January.I'm so disappointed that all Vodacom staff is *********** in their jobs ,I have spoken to more than 7 agents and still haven't been assisted Instead I'm upgraded yet I didn't receive any phone.So for how long should I call Vodacom to do a simple thing and cancel my contract.How would a customer even want to continue with a provider that gives bad service.If I don't get a cancellation letter and the phone removed I'm going to take this up further.I will contact the Ombudsman.