Vodacom

I wrote a review of vodacom overcharging me on my contract they came back to me after the review and said they are going to credit me I sent my bank letter to Sharon at saves@rewards still waiting for the credit it never came true there is no contact numbers my account is now in area with about R1555 I now get daily calls for the arrears but no credit almost everyday I have to explain to someone my story and then get told we will make a note on the system if there is a note y don't they see it before phoning me this is the 1st time I am in arrears for the past 25years please vodacome let your people know what is going on. My account number is l***