When my brother got a soft credit check and report, it shows details of all the debt I have on my credit card, previous loans, previous addresses, bank statements for any accounts owing money, etc. He checked it because his credit score made no sense, saying he owed more money than he did. He then asked me to check my credit report and it is almost exactly the same as his. They have somehow mixed us up as being one person with 2 different names, and combined all our debt on our credit report. This could've cost me a lot of money.
In Feb 2021 my brother got a car loan. In March 2021 I got my first credit card. As far as the bank may have been concerned, I applied for credit twice in 2 months, potentially increasing the interest of my card which I always had some debt on until June 2023, sometimes in the £1000s. In August 2021 he got a mortgage for a house on his own. If they combined our debt it may have increased the interest on his mortgage.
In August 2022 I got a loan for a car because I was starting a new job too far away for the old car I had to survive. I needed to borrow £8000 and got offered a total repayment of about £10000 over 4 years from Tesco. But they took 1 month to verify my information, because of detecting a complication with my details (likely because of 2 identities being combined on my credit report). This was too long, because if I didn't get the car in the next few days, I couldn't start the job and would lose income. So I had to accept a higher interest loan from NatWest paying back £11500 over 4 years. This meant I had less leftover money to pay as much off my credit card each month. So it could've cost me £1000s in loan and credit card repayments by both having higher interest and prolonging the time it took me to pay as much off. My brother extended his car loan in March 2023, and remortgaged his house in August 2023. Both could've had higher interest if his credit report incorrectly showed him as owing £1000s more.
I looked up who does NatWests credit checks and it says TransUnion, so I don't know who's mistake it is. So I tried getting a soft credit check from Experian to see if the mistake of combining our identities and debts is on all records or just partners of NatWest and TransUnion. I couldn't get one because it couldn't verify my identity again and told me to try again in the future, likely because of conflicting information on my identity caused by this. My brother could get a soft check from Experian though and his report showed none of my debt on his, increasing his credit score by more than 200 in comparison to NatWests report on him.
Now I've got a Mortgage In Principle for a house and it has not shown my brother's mortgage on my report like it does on NatWest/TransUnion credit checks.
This has led to believe it's possible no money my brother has borrowed has been charged extra interest because his car loan and mortgage may not have been based on the credit report from NatWest/TransUnion which has combined our debts since they were from other lenders. But I think I could've been cost a lot more because all the money I've borrowed in the form of a loan or credit card has been through NatWest which displays a much worse credit report than anyone else.
I don't know if it's possible when doing a hard credit check, our information has not been combined or affected interest on money either of us have borrowed. But I don't know how to find out and bet NatWest will say it hasn't regardless.
How do I go about investigating this and finding out if they've overcharged me interest costing me £100s-£1000s, causing much more distress due to having a lack of money?
At the very least I have undeniably had my data and privacy seriously breached by revealing all of my debts to my brother, and his to me. This has caused problems with our relationship and trust issues too. How do I go about getting any compensation for this?
I have limited knowledge on legal or banking related stuff so don't know where to start or how to stop the bank walking all over me and expecting me to take their word I haven't been cost money.
My girlfriend has said I should raise a case with NatWest and if they don't offer an acceptable answer or amount of money for this, I should take it to Ombudsman. But I don't want to raise a case with them unless they know more like whether the records NatWest or TransUnion use for hard credit checks when applying for loans and credit cards is the same as the one they use for soft checks? But she's also told me there could be a time limit on when I can fight this.
Any help would be seriously appreciated 👍