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.
First off you might want to consider the fact that you infer from your initial post that you get paid for surfing
on any site. If there are specific paying pages I would appreciate it if you could note that down on your initial post that only a set few pages actually pay, seeing as I tested your extension on a wide variety of sites.
Secondly, the whole purpose of this exercise is to confirm that your site actually pays and does not instead waste people's time. If you could provide proof of at least a single payment I am more than happy to redact my post and apologize for jumping to conclusions.
EDIT: And you might want to mention that the check is > 3 instead of giving the impression that it is a minimum of 3.