The check is > 0.03, you had exactly 0.03 which is why it said not enough balance.
But since you had exactly 0.03, it means you didn't actually browse any paying pages. That's not the intended purpose of the extension, we don't get any referrals / affiliate payouts that way.
All cash outs are manual, and if you sign up, use a code, and refer two people 2 minutes to each other, both of them who abandoned their account, one of them from a VPN, you are not going to get paid.
We do pay, we've already done a cash out to someone who isn't trying to game the system like you, and I've tipped 100 MBTC to random people last night.