Unable to use Wallet on Sense 2

[iKarlito]

So I just revived the Sense 2 after quite some time as I was not able to get a refund after they rolled out Google Wallet. I was never able to add a card to my watch. 

Now I have an iPhone 15 Pro Max, a Sense 2 and a new Bank. Just installed the Fitbit App, logged in and wanted to add a card from my Google Wallet to the watch. I choose the correct card, already in my wallet, enter my security code and get the error, that I will not be able to pay in a shop and I have to contact my bank. 

I actually contacted my supported bank, found it in the list for Germany, and was told that everything is fine. 

I can use my cards in the Google Wallet, on my Apple Watch and basically everywhere but the Fitbit universe. 

I tried rebooting the devices, repairing, deleting the card and adding it via App and even talked to my bank as the error message suggested. I am basically now where I left a year ago. Unable to use the Sense 2 with Google Wallet though I even have a new bank now. 

Any suggestions?

Moderator edit: edited title to clarity.

[CrisVillaFitbit]

Hello and welcome back to the community, @iKarlito.

Thanks for letting me know about this situation in regards to the wallet situation on your Sense 2.

Can you confirm the name of your bank, please? So I can check this out, just to confirm everything is ok! Also, can you send me a screenshot of the message that appears whenever you try to pay?

[iKarlito]

German Sparkasse. Supported as it is on the list. 

I cannot add the card to my watch, so there is no message when trying to pay. It only says, contact your bank