Hope you got this sorted, I too had my contract with EE hacked, they managed to activate an esim thereby cancelling my sim in my phone. As they had access to my bank account details via EE, they then signed up for a loan at my cost. To sort it and I must say it was down to me, I changed the phone number via EE and cancelled the old number and am dealing with "my" new loan with the companywho provided it. EE were not much help. I reported it to Action Fraud and note there was a major ransomware attack and data breach by EE a couple of years ago. I'll be raising this with EE and ofcom as well as the FCA.
