Rain poor service and malicious deduction

I cancelled my rain subscription in February 2025. I requested on the 1st of March 2025 rain deducted from my account. I was told that my account was under post paid billing for 1 month and the account is now settled. I requested that they remove my banking from details from their portal and the consultant agreed. I have not used rain internet since 18 February 2025, cancelled the subscription and gave back the router. Today 1 April 2025, rain deducted funds from my account