Fishing answer phone messaged

[BW02]

I have a blocked fishing number that is somehow leaving voice messages. Why is that and how can I delete it without listening to it?

[MI5 · Accepted solution]

@BW02 

Voicemail guide here Guide: All you need to know about O2 Voicemail 901 

[Bambino]

@BW02 Take a look here to make sure you've blocked the number:

https://www.samsung.com/us/support/answer/ANS00062352/

https://support.apple.com/en-us/HT201229

There are also these links to look at:

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

[MI5]

Some phones just divert blocked numbers to voicemail if enabled.

Nothing can be done about it except to disable voicemail.