Banks and other companies work hard to protect you against fraud. But there are things you can do to protect yourself too.
Here’s some handy advice about how to stay safe 
Banks and other companies work hard to protect you against fraud. But there are things you can do to protect yourself too.
Here’s some handy advice about how to stay safe 
The strongest passwords are ones made up of four random, common words. This XKCD cartoon sheds some light on why.
This is not very well worded, this may be a good way of choosing a strong password, but how is this stronger than 5 random words, or a fully random password stored in a password fault.
Some crucial information left out i feel is the likes of identity theft protection , maybe they aren’t perfect but worth it if you’ve had your license stolen as that has your address, DOB, full name and it’s even a fully valid proof of i.d. to open bank accounts online for alot of legacy banks.
Also registering for cifas proactive service is a minimum after losing you license
https://www.cifas.org.uk/services/identity-protection/protective-registration
Use www.masterpassword.app
You’ll need to just contact action fraud and let the police investigate it. Most companies can’t give out any more details than what you already know.
Guess it also depends on has any credit been taken out in your name an all
https://www.gamblingcommission.gov.uk/public-and-players/guide/age-and-id-verification
This says that you must prove your age and identity before you can gamble but doesn’t seem to be overly specific on that process.
Who is the gambling ombudsman or whatever? Can they do anything?
Have you tried raising a dispute with your CRA (TransUnion/Equifax/Experian) letting them know that it wasnt yourself who performed the hard search on your credit file - They will raise the dispute on your behalf and investigate the case for you perhaps they may have better luck contacted the company.
I’ve only had a quick skim through this thread, but have you tried registering with https://www.gamstop.co.uk/ This should, I think, close any accounts set up in your name and prevent others being opened.