Bad Service

I'm trying to get help or information after ***** was committed on my RCS account after the data breach and before TransUnion activated the True Identity account on 6 April 2022. I contacted the call centre 4 times and everytime I get cut off and get the rate your experience section whilst still trying to explain what has happened. Tried to log a dispute on the website, and after the thrid attempt gave up as it keeps saying...Please complete all required fields...which was done!

I only want some advice on how to proceed with this matter as I already have logged a dispute eith RCS, but because of the data breach, my whole credit profile is at risk of getting damaged due to this data breach and all my details are available on the dark web (according to the sms feom TransUnion) for anyone to use.