Try this. I yet to try too. Found in Reddit by /u/deepfried_mind
I will use a UK address.
Workaround:Issue a digital card from a different country (basically change your address to another country, create a digital card, change it back to your actual address). The newly created digital card can be added to apple wallet for contactless.
Change your country under your profile on the top right corner -> Edit, once you've changed your country, the next digital card you make will be the country your profile is set in. Worked for both myself and a friend of mine, we changed to the UK.
Note that your physical card will still be the same, ie. Wave & Apple Wallet incompatible, only the digital card will work.
Edit: Just tested. Confirmed working.
Easy don't need to bring physical card out overseas in the future.
Tried this instantly after seeing this post and it worked. Just went back from Thailand and used Apple Pay there and it worked seamlessly. Sad to know that wise has disabled it now.