Are you able to receive general desktop/push notifications?
You can test this by visiting https://www.bennish.net/web-notifications.html and forcing a push notification to appear.
Yes
Are you in a supported region (if so, which one)?
Check https://brave.com/transparency and confirm that you are in an applicable region
Yes, UK.
Give us a brief description of the ads behaviour you’re seeing
The “Estimated rewards pending” would not reset after the monthly payout. It keeps adding to it for the last 3 months.
What OS/Brave version are you using?
Please copy/paste the top 3 lines of your brave://version
page
Brave: 1.13.82 Chromium: 85.0.4183.83 (Official Build) (64-bit)
Revision: 94abc2237ae0c9a4cb5f035431c8adfb94324633-refs/branch-heads/4183@{#1658}
OS: macOS Version 10.15.6 (Build 19G2021)