No responses received or actions taken regarding request to cancel contract.

On the 15 January 2021 I sent a cancellation email to MTN as I no longer want my contract with them. I have received an automated response email stating the will make contact. "A Client Service Representatives will get in touch with you within 24 hours to complete your request." I followed up on the 21 January 2021 and another automated response was received. I followed up on the 2 February 2021 and yet again I received the same automated response email, followed by an actual email from a member of their Enterprise Support Services-Saves Team, asking someone in the Retentions Team to get back to me. Yesterday, 15 February 2021 another payment for MTN was taken from my bank account and no email or any other form of communications have been received from them. This is exactly 4 weeks since the initial email to cancel was sent and NOTHING has been done.