Foneyam Company using my prepaid vodacom number *****ulently as contract

I do not know this company until I received an SMS 11 August 2026 80:08 pm telling me of my last payment is due 20 Aug 2026 amount of R236.49 for contract ending 20 Sep 2026. after few days I received another SMS saying if I do not pay my number will be blocked. i have been using my Vodacom number for many years , my number is not a contract not ever. I contacted this company and they using my number *****ulently , I do not know have a contract with them. I emailed them , send screenshots of SMS received. how can foneyam company use my pre paid cell number and give it to someone unknown to me as a contract. funny enough the SMS has a reference number which does not match my details . still they have the audacity to request my id number via email. I want them to remove my number and cancel that contact that is done *****ulently.