Mr Delivery vilify client

Late last year I received a notification from my bank on a purchase at Mr D, I contacted Mr D immediately and they told me that I need to report it to my bank's ***** line for investigation. I did and my Bank phoned me and confirmed the transaction was ********** and the payment was recovered. A few weeks later I noticed that my Mr D account was suspended. I contacted them and was told that I'm blacklisted as I used the banking details of another customer. I told the agent that it's impossible as my bank account was used in the ********** transaction and another non-existent address was created on my account, my bank confirmed the ***** and I have proof of the money deducted from my account. I was just told the other person reported me and my account will never be re-activated. I cannot believe that I'm now the ********!!