Ads are visible but not earning BAT...STUCK AT 0.00USD SINCE DAY ONE

Hello Respected Helpers of this Amazing Community .I found brave very interesting and helpful in every possible case. I have been using Brave for 4 days now and i can feel what i have been missing for so many days. But i am unable to receive any BATS out of the ads i see…i am stuck at 0.00 usd …whereas my estimated shows 0.40usd per month. I have a verified account and have been clicking on ads and staying on their websites for 10-15 seconds but the BATS don’t increase. Please guide me in what mistake i might be making and help me overcome in this problem as soon as possible …
Thanking You All