Telkom *****

I received a call 2019 whereby I was asked whether I would like to upgrade to wireless internet and I said no thank you as I am waiting for my contract to expire in 2020 because I want to install fibre and the call ended after that. Couple of months later I received a call from a technician asking me when I am available for installation and I informed him that I have not ordered anything from telkom whereby he responded he is installing new routers due to telkom removed or are not using copper lines anymore therefor the new installation. Today after enquiring about when my contract expire in 2020 I was informed that my contract has been renewed when the new router was installed. This is totally unacceptable and I need this to be rectified immediately as I did not agree to this. Please I need help urgently.