"Poor service received from Vodacom"

I am sad to advise that have I am experiencing bad customer services with Vodacom. I am struggling to Cancel a Vodacom contract since October 2024 as the Contract expired in November 2024 already. I cancelled my contract on the 26th Oct 2024 via the Vodacom App, but had no response. I called in on the 21st Nov 204 and cancelled my contract telephonic-ally with Ledeba, but still received a Invoice in January 2025 and was billed again? I have phoned and emailed again on numerous occasions, but have had nor JOY? I have been a Vodacom customer for more than 20-years, but I am being treated as a "Pay as you Go" transaction. Ek kry Swaar... I am disappointed in the poor service received from Vodacom.