Hi! I see you’ve been having trouble receiving the verification code for logging into your FNB app for about a month now. Let's try to get this sorted out together.

Just to clarify before we proceed:
- Are you trying to receive the code via SMS or push notification?
- Have you checked if your registered phone number on the app is correct and active?
- Also, is your phone connected to a stable internet connection or cellular network when trying to receive the code?

Once I have these details, I can guide you better. Meanwhile, here are some initial steps that often help with OTP (one-time password) delivery issues:

1. Check Your App Version
Make sure your FNB app is updated to the latest version from the Google Play Store. Older versions can have bugs that affect code delivery.

2. Notification Permissions
Since you have an Android 10 device, go to Settings > Apps & Notifications > FNB App > Notifications and ensure that notifications are allowed for the app, especially for SMS or push notifications.

3. Network Connectivity
Verify that you have good cellular signal or data/Wi-Fi connectivity when trying to receive the code.

4. Clear App Cache
Go to Settings > Apps & Notifications > FNB App > Storage & cache, then tap Clear Cache (avoid clearing data unless necessary).

5. Check SMS Blocking
Sometimes SMS from shortcodes like those FNB uses (228-402, 658-21) might be blocked by mistake. Check if you have any message blocking or spam filtering active that might prevent these codes from arriving.

6. Reinstall the App
If none of the above works, uninstall and then reinstall the app to refresh all settings.

If you've already tried these, let me know which steps you've done, and we can look deeper, like checking if your account or device needs re-verification or if there are server issues.

Meanwhile, you can also consult FNB’s help on not receiving OTPs here for more details:
https://www.online.fnb.co.za/rhelp_0_15/OB_SA_Downloads/Trending_FAQs_-_Self_Help/Not_Receiving_Push_Notifications_and_or_OTPs.htm

Could you please confirm what you’ve attempted so far, and we’ll take it from there?