Review my bill and refund me

I have since logged a complaint with Rain advising them that my sim card was lost or ****** and requested a sim swim swap for a device I hadn't used since November as we had Fibre installed in the house I thought I was being billed for what I had used since this is not a contract. This was logged weeks back and there was a mess up with the courier company they nominated and I decided I don't want the sim card anymore in November or early December I had requested they cancel my sim and Come pick up the router complaint was logged and acknowledged but never picked up. I don't have a sim card and the device has not been working for 3 months yet o was double debited and I also made a payment on the app as they had said o owe them. I logged another call the 4th February to complaint I was advised of a turnaround time of 24 to 48 hours to date no response.check my billing and advise if I used your data/wifi connection and reimburse me and furthermore come collect your wifi device as previously instructed.