DEFAULT LISTING(TU***)

Logged a query with regards to adverse information on my credit report on 16.03.2018 each time I phone the call centre I am told the matter will be escalated. It is almost 3 months later and still no resolution . No one seems to know what is going on even after I give TU number and ticket number. This is unacceptable on all levels as I have supp**** all relevant documentation to solve query but seems nothing will ever be done about it.