Nfc payment problem

[A_friend]

Hi every one,

I've bought Xa1 Ultra almost three weeks ago and have used NFC for payment a few times successfully.

But it is not working since last ~10 days. I've tried simple things like turning off/on both NFC and phone, and also from the bank application, disable/enable the mobile payment. I've also tried payment without the back cover, no way...

Any ideas or people experiencing similar problem? 

[Brobddy]

phone is ok, sometimes PINPAD does not accept payments because they are not connected to global payment system

[A_friend]

Thanks but this is not the case. My friends and others are able to pay... 

[A_friend · Accepted solution]

I've solved the problem myself (frankly, not as expected). 

Although it seems like multiple cards are supported this is not the case. You should enable only one card's mobile payment at a time...