Where is the my 10 k diamonds?
Where is the my 10 k diamonds
iPhone XS Max
Where is the my 10 k diamonds
iPhone XS Max
My credit card has a problem and my 10 k diamonds gone ?
We are end users like you, not Apple. We cannot know the status of your card nor where your diamonds are and, lacking details or context, can only guess that you are referring to in-game purchases from the Apple App Store. Can you confirm that is the issue?
There is an Apple article linked above your name containing all we end users know about the Apple App Store's not accepting a method of payment. It has actions you can take.
For the fate of the diamonds, I suspect your only viable action that can help trace them is to contact the game developer:
How to contact an app developer - Apple Support
Where is the my 10 k diamonds?