TransUnion Credit Reporting Complaint

TransUnion Credit reporting department,

Credit reporting company's investigation Inadequate help over the phone Texas

I called to get persistant disputes removed from my credit and I was told it would take 30 days, however, when I called - and - they were able to do it within 72 hours. I informed them that I needed it done this week because I am applying for a mortgage and also told her I would notify CFPB and file a complaint. This information didnt faze -, and again said it will take 30 days for the disputes to be taken off. Question ; Why isnt there any unionformity between the credit bureaus?