Garmin Pay: Your card has been rejected. Please go back and make sure your data was entered correctly

same problem with Tactix 8

I recently bought a new Tactix 8 51mm AMOLED watch. I'm trying to add my payment cards from several banks to the watch, and all of them support Garmin Pay. However, I can't add any of the cards to the watch.

I've tried resetting the watch multiple times, changed my account five times, even created a new one, but the issue remains the same. It always displays the message: "Error, the card was declined. Go back and verify that the entered details are correct." This happens with all my cards, meaning the request doesn’t even reach the bank. I contacted my banks, and they confirmed that Garmin doesn’t send any card verification requests.

So, there seems to be some kind of block on your side. Can you tell me where and why this is happening, and how to unblock it? I've also tried changing my internet provider and using a VPN, but nothing worked.

What can I do to fix this?

I did that, but I didn't get any answer that would fix the problem.

What did they say when you called them?