Vodacom Spring mall

Vodacom is harassing me,they don't want to cancel my contract ,my contract ended in October 2025 I phoned them in September to let them know that I dnt want to continue with the contract,they told me that there is no need to inform them because the contract will end automatically after my last payment, I even received the email confirming the cancellation but they keep sending me messages that I owe them,they even blocked my number I can't make calls. I regret ever joining Vodacom I won't advise anyone to take a contract with Vodacom they are a ****