SpamBlocker (Call & SMS) Configuration

I am currently receiving 40-55 spam SMS messages daily and am looking for a way to block them while continuing to use Google Messages as my default app.

I installed "SpamBlocker (Call & SMS)" by aj3423 from F-Droid, enabled SMS and MMS screening, enabled contacts and configured Regex settings for both number rules and message rules. While the app correctly identifies and lists these messages as blocked within its own interface, they are still appearing in my Google Messages inbox.

Phone information:

• Moto G Power 5G – 2024
• Android version 15
• Mint Mobile
• Bitdefender Mobile Security

Following are the setting changes I have made so far:

• Allow background usage
• Disabled Google Messages Spam Protection and Notifications
• SpamBlocker permissions allowed: Calendar, Call logs, Contacts, Notifications, Phone and SMS
• Set default Caller ID & spam app to SpamBlocker (even though only using SB for SMS/MMS)
• Special app access allowed: Modify system settings, Notification read, reply & control and Display over other apps

Does anyone have any suggestions on how to configure my settings so that SpamBlocker can intercept these messages before they reach my inbox? I would be very grateful for any guidance provided. Thank you.