Vodacom trying to **** me years later

I had 2 contracts from vodacom 2017 iPhone and a router after 2 years i got another iphone signed a 24months contract. After 24months vodacom decide to continue with the contract and changed it to month to month contract and they do not tell me few months later i tell them to stop debiting my account cause our contract ended months ago yes they stopped debiting. Years later i get calls from debt collectors today to be exact 14/05/2025 that i have a debt from vodacom that i need to pay. I mean why are they ****ming people on X formally known as Twitter they asked for my details now i need to contact their legal department for what they were suppose to end the contract like the other 2 i dont have time to listen to someone who's job is to lie to customers and try and **** them please stop calling me and admit your wrong and remove my name from Xperian