Good day to you!
My apologies for the delay in response.
I suggest checking the validity of the equipment purchased under the service coverage. Contact Cisco customer support about the change of ownership of the service coverage from one country to another country (Cisco is Global, so I don't foresee an issue.). I'd perform a serial number query using our services contract portal >https://ccrc.cisco.com/ServiceContract/
Including the show inventory from your, CLI will assist in the verification of your service coverage.
Additionally, please speak with our customer service center for help using the Cisco Customer Service Hub here >https://customerservice.cloudapps.cisco.com/
Note I find phone calls more responsive for quicker solution/resolution.
>Customers and Partners: 1-800-553-6387
I hope this helps with your service coverage change of country questions.
Have a fantastic day ahead!