Blocking blacklists doesn't work. Did you see the blocked message?

When the interception blacklist is not notified, the interception information is usually not displayed. When you add a phone number or SMS number to the blacklist, the phone call or SMS sent by the other party will be intercepted, but you will not receive any notice or display. The other party's phone or text message may be received by the interception mechanism inside the mobile phone, but it will not be displayed on your mobile phone.