It works for online payments, ATM withdrawals and even in brick & mortar shops.
The flow for online looks like this:
1. Go to the Payments / billing page.
2. It is almost prevalent now that you just see a BLIK input box immediately, and the other standard "pick your payment options" box below.
3. Fire up your bank's mobile app, navigate to the BLIK tab (normally a swipe away), grab the 6 digits (or copy)
4. Put them in the box (or paste)
5. Press OK on your mobile device (you can even 'trust' your browser after succesful payment, such that you don't have to confirm the next payments on your mobile device with some monetary limits).
6. Done.
It usually takes less than 30 seconds to do all of this. No need to put your CC details or anything in.
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[more-info] - https://www.ppro.com/wp-content/uploads/dlm_uploads/2018/04/... https://www.finextra.com/pressarticle/71555/blik-becomes-the...