on 03-01-2021 15:25
on 03-01-2021 15:32
Nothing to do with Brexit that we area aware of.
Most likely a scam and definitely if it came from a mobile number.
Block the number and do not follow any links.
Forward the scam text to 7726 - It's free.
Other ways to report here including Action Fraud website
https://www.o2.co.uk/help/safety-and-security/phishing-and-smishing-advice
How to block a number:
https://www.samsung.com/us/support/answer/ANS00062352/
https://support.apple.com/en-us/HT201229
O2 never text from a mobile number.