Credit Bureau

When I called last year to cancel my tracking account i was informed that i need to pay cancelation fees. That was not the problem i told them I will pay an installment they took the account to third party without information me. Nevertheless, i managed to get the amount and paid it all beginning of the year February. But the account this reflects on my credit bureau TCI and I cannot open any account because of it. I called them several times all i am told the account is not suppose to be there the legal team will get back to me. Until today no one contacted me and i am struggling to get assistance. I am not given any reference number or email except phone number. This is really frustrating