TELKOM STOP HARASSING ME PLEASE!!!

I'm really requesting Telkom to STOP calling me or their agents, as we don't have any business whatsoever. i was going to call Telkom direct how ever on the numbers I've got, I've been taken from pillar to post without any resolution & wasting on my airtime. The last contract deal I had with Telkom started back in 01/11/2020 for the duration of 2 years, that means it was ending on the 31/11/2022, I called for cancelation of the contract during September & October 2022, after the last debit order on the 31 November 2022, i then disconnected their mi-fi of the plug ever since & ceased all debit order related to Telkom, as our 24 months contract deal was reached & I move on, now they are harassing we with calls stating I owe them, can someone maybe enlighten me what do I owe Telkom as I've paid my 24 months contract subscription monthly & even called for cancelation of the contract before it could end, just avoid the unnecessary continuation of the deal. herewith my account number for your investigation.. Account no ***