This was @O2 mistake in allowing a fraudster to open an account and yet I'm the one being punished. Your fraud team do not seem to care. I even had to use a GDPR SAR to find out what the supposed debt was!
I'm hoping you can finally help me to get this issue resolved.
However the default remains on my account this morning.
I've emailed three times since then on 13 November, 7 January and 21 January and have not had any reply.
I am at my wits end about what to do about this.