I have a current registration in CIFAS ... Thank you!

Okay, sory! i speak a little english and i help with google translator sorry for my text!

Hello All!! I have a brutal problem with the trader TopCashBack LTD... :((( for almost three years I had an account with this merchant and he closed my account with over 900 pounds expected in my account cash baCk. !!! In their final answer, they sent me a letter consisting of one sentence !! they write to me that I have committed an illegal activity ?! challenged several transactions of Deliveroo to Uber East and Just east... I immediately sent them pictures of my receipts !!! but I didn't get any more answers from them !! I wrote to whom I did not create a case in the resolver I wrote to two obusmana I also wrote to the FCA but everyone refers me to others and runs away from responsibility !!! It turned out that behind this company are about 38 companies... Can anyone give me the right advice Which organization can I go to and turn to ?! so I can condemn them properly! because my facts are not disputed and their [allegation removed] and obvious! during this time before they closed my account .. I signed many contracts with mobile operators as well as with other creditors because of cashback .. as well as many other insurances ... I still haven't found my credit file on the street !!