Disgusting Service and zero customer service - You must be used to the abuse of clients

After discussing my account, on the 11 January 2022 with Zante (whom I havent heard of again), which is a HUGE mess as my account reflects an outstanding balance for usage from the apartment I moved in June 2021! To date nothing has been done to resolve this issue. I have offered to contact the agency that I rented from to get a letter to confirm when I moved from there and that I havent been back subsequently. This is absolutely disgusting customer service and I understand now why my collegues warned me against Supersonic. It took them 7 months to update my address. Its very obvious that the connection in my previous apartment were never decommisioned, now they try and ***** monies from me to cover for their *********** staff!!