UNABLE TO LOG A DISPUTE!!!!!

Good day, I am absolutely appalled with Transunion. My spouse is trying to dispute his credit report which is incorrect and is unable to log onto the online channel as the log in details that we have does not work. We have uploaded his FICA documents multiple times, however, we have still not received any feedback. We have sent his FICA documents to the contactcentre e-mail adddress as advised in the message pop up on the online channel, only to receive a mail stating that we cannot be assisted via the e-mail address. What are we supposed to do now???? It seems that you are making it as difficult as possible to challenge credit reports.