Vodacom data packages

I have 3 contracts with Vodacom and a RC consultant phone me and told me that my current Data package contract is expiring at the end of January 2021 and offered me a new 3 year contract at a good price. Needing data as I work from home I agreed to the new contract. The router was delivered and activated, but my old router and contract was also running at the same time. So I went to my Vodacom shop and they informed me that my existing contract is only expiring at the end of June 2021 so now I am paying for 2 contracts which I don't need at all. And you cannot cancel the old one or the new one????? Just a warning for you people out there. Ignore this marketing calls and rather go to your local Vodacom shop. most of the time the line is so bad you cannot hear very clear.