Q: Apple Pay "Your card is being activated" text does not go away...

Hey, I hope I can be of help. I had the EXACT same situation as you described, to a "T"! I added my card and called the bank to verify it, and they said it is ready, and the "card is being activated" message wouldn't go away; my bank told me to call apple.. So after much time on the phone with Apple, and much time spent in the Apple store, I gave up., but I decided I'd try calling my bank again. I explained to them everything that was happening and after that, they transferred me to someone from their tech department and I told him what it said on my phone, and he said "ok wait a second" and he told me it should now say "card has been suspended", which it did, and then he said that it should now say "Card is ready" or whatever it is that it says. So he was able to do something while on the phone with me basically instantaneously, so I would suggest you call the bank and explain like I did. Good luck

In case anyone is having this problem, still, I found that when my camera read the account number off the card it mis-entered it (it didn't read the numbers correctly).  So my card sat in "being activated" for a day or two due to a wrong card number.  Once I removed the card and rescanned it, double checking that it read the account number correctly, it activated within several seconds.