Petrus
Hi there 🙌,
I am not a Google Pay user, but I checked the instructions provided form bunq and I do to see the SMS step:
https://together.bunq.com/d/8480-what-is-google-pay-and-how-do-i-enable-it/2
https://together.bunq.com/d/8681-how-do-i-add-my-card-to-google-pay/2
If after following these steps you still have issues I would contact bunq support via App chat... you can then share with bunq all private information which I would not share here at all given this is a users community, open to the public internet:
https://together.bunq.com/d/32181-how-do-i-contact-support
Good luck 🍀 and have a great day 🌈
GG