Unauthorised debit/payment from my account

I complained about bad service previously resulting in me cancelling both my rain accounts, I was requested to pay my account in full which I did and the 5g router was then picked up from my house on the 12th of Aug 2024. My account was debited 3 times on the 25th Sept yet I cancelled the service and have not used any of the services as Ive alluded in the previous complaints as well. I want my money to paid back as I do not owe rain anything. I put in a query with Reference Number: ***9 and ive still not been assisted, your phones are also not being answered and when answered your agents hang up