Incorrect billing and refund not paid out

I took out a vodacom fibre deal in February 2021 but due to failure to connect got frustrated at the lack of service and cancelled, SR*** Vodacom cancellation. To my suprise i was debited for this service not rendered. After countless calls to vodacom to enquire why i was debited i recieved this reference number for the refund on the 30th of March Vodacom Refund: SR***. To date the money owed to me is still not refunded and i note on my debited orders that they still intend to repeat this error in the month of April. This is extremely frustrating and unproffessional, worse i hold a phone contract with vodacom but the service rendered through the fibre and billing departments is shocking making me think of dropping the entire companies servicies as a whole. Please rectify asap.