on 19-07-2021 11:08
on 19-07-2021 11:19
They are scammers who spoof phone numbers.
Do not call any of them back.
Block the numbers and report them to 7726, it's free.
O2 advice here https://www.o2.co.uk/help/safety-and-security/phishing-and-smishing-advice
https://www.actionfraud.police.uk/
How to block a number:
https://www.samsung.com/us/support/answer/ANS00062352/
https://support.apple.com/en-us/HT201229