Horrible service

I've settled my account with Retail Capital in May 2019. I dealt with Celeste Chapman. Since then it has been a battle to get Retail Capital to update the credit bureaus. I am in the process of buying a property but with them delaying this for so long, the bank is unable to wait any longer and will I now be losing this property. i have sent numerous e-mails to Celeste and keep on receiving the same reply, ' this is with our legal department'. The latest e-mail sent to her on 30 September 2019 she has not even responded on. When I phone the office number I get told to send the e-mail to her.