Could I trade in my iPhone in other countries?

I am writing to seek guidance and information regarding a forthcoming purchase and trade-in situation.

I am planning a trip from the United Kingdom to France and am considering purchasing a new iPhone during my visit. I have some inquiries I hope you can assist me with:

1. Trade-In Option: I would like to inquire if it's possible to trade in my current phone towards the purchase of a new iPhone in France. Will the French Apple Store accept trade-ins from customers visiting from the UK?
2. Tax Refund for Trade-In: Furthermore, I am curious about the tax refund process when trading in my old phone and purchasing a new iPhone in France. As a non-EU resident, will I be eligible for a VAT refund, and will the trade-in of my old phone impact this refund?

I am eager to understand the procedures and any prerequisites I need to fulfill to make this process seamless during my visit to France.

Thank you for your time and support. I look forward to your response.

Yours sincerely,

[Re-Titled by Moderator]