Why can I still receive text messages intercepted by my mobile phone?

Improper setting, incomplete blacklist, insensitive message content and other reasons.

Improper setting of 1.: due to incorrect setting, it cannot be effectively intercepted.

2. Incomplete blacklist: When intercepting short messages, mobile phones will use blacklists to block the specified senders or keywords. If the user's blacklist list is incomplete, or the sender uses a changed number or keyword, then these short messages will be bypassed and intercepted.

3. The content of short messages is insensitive: mobile phones intercept short messages and filter them based on keywords or short messages. The content of the sent SMS does not contain the keywords or sensitive content in the interception rules, so these SMS messages will not be intercepted and will be sent to the mobile phone normally.