Poor service - Contract not cancelled after numerous requests!!!!!!!!!!!!

I requested that my contract be cancelled on 25 February 2022 with March 2022 being the cancellation month. The reference I received via SMS was ***. Since then, I've phoned the call centre numerous times to confirm that my contract was indeed cancelled but no one was able to assist. I spoke to Keitumetse on 29 March who confirmed that my contract was cancelled and that March will be my last month. Now when logging into my Vodacom app, I see that my contract was not cancelled. We immigrated to Australia in March and I need urgent assistance to cancel my contract.