500 Broker Service Response exception during Apple Pay In-App Provisioning

I'm facing problem with in-app-provisioning in production application. When we try to tokenize (before T&C step) we are getting error from topic.

I've also posted this in Feedback Assistant: FB18403577.

I'll be very happy if someone could help me to get what is wrong with data or configuration of application.

500 Broker Service Response exception during Apple Pay In-App Provisioning
 
 
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