SMS Filtering

Why am I still receiving SMS from "Likely-SCAM" Sender ID?How do I know SMS filtering is enabled on my phone?Will I be able to see the SMSes that get filtered?Does ScamShield filter messages on other apps like WhatsApp?Will the app filter SMSes from people I know?Why can’t ScamShield automatically filter scam messages on Android devices?My gov.sg SMSes get filtered into 'Unknown Senders' in iOS. Is this filtered by ScamShield?