Spam calls

[ChrisDerby]

My wife is getting many similar spam calls with a dodgy 901 text call back message if she doesn’t answer. She is getting several per day, she blocks the numbers but they keep coming all fro different numbers! How can we stop this?

[Bambino]

@ChrisDerby If the numbers keep changing there's nothing you can do except continue to block the numbers and report them free to 7726. It's a plague with no solution at the moment on every network.
Don’t open any links or enter any information.
O2 advice here:

https://www.o2.co.uk/help/safety-and-security/phishing-and-smishing-advice
https://www.o2.co.uk/help/safety-and-security/unwanted-calls-and-messages
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