I have done some digging and found that my device is from the US but I bought it from a refurbisher called back market in the UK which is where I live.
Many thanks in advance for any support or advice you're able to give 🙏
If it is a U version for USA, you could Google how to change it to U1 to get updates in UK, which is what I did for my S24 that is the Snapdragon US version. Now downloads the ota updates without any issues.