Useless Support and Billing Teams

My account was debited with an amount of R1437, and I had cancelled my services a long time ago. I would like to request for a refund. I have called them since the 28 December 2022 and still no one has contacted me? There support and billing department as useless. {"message":"Escalation form","detail":{"message":"Problem: Customer wants refund because he cancelled his service Finding: Outstanding amount was pending its debited we can't give you refund. Customer is not listening, advising customer that there is no refund due, wants the billing department to confirm Solution: Escalating to billing","more_info":{}}}

This is the email I received I am no longer a customer but they just don't care. I didn't receive a bonus this year that money I saved for my twins that were born on 23 August 2022 that was there milk money and they just took it without consent. I have phoned them numerous times and they said they will get back to me emailed them sworn at them nothing helps. Just don't ever open account with rain they will take your childs food away.