Unauthorized charges

I believe that this firm handles the legal and finance matters for Intellicell. I closed and paid up my account in 2019 yet every few months they still debit me. I am not working and a single mother. Sunday they debited the last money I have. I was told it will be refunded within three business days and I'm still waiting. This is a need as I said that was my last funds and I am now pass the point of furious and stressed. You people have no right