Poor customer service

I’m so disappointed at Vodacom cancellation department. I have a contract for mobile phone with Vodacom. I phoned *** on 23 January 2025 at 13h07 to request for a cancellation of contract as it was ending on February 2025. Today I received an sms from Vodacom indicating that they are debiting R273.99 for March 2025 which I don’t understand because I requested a cancellation. I phoned again today to request a cancellation of contract and I was told that the cancellation is going to take 31 days counting from today and they are still going to debit me for the month of April 2025 because I’m still receiving benefits from Vodacom which I did not request.