Getting out of a Telkom contract is a nightmare

I took up a 24 month cellular contact in 2019 with Telkom. I reported the device as lost or ****** before the contract was over but continued to pay the bill monthly. Telkom to this day (2023) continues to bill me for a phone and service I do not use despite multiple attempts online and instore to have the 2 year contract terminated. It's atrocious that big corporations can unabatedly debit money from citizen's accounts in this way.