Q: Can I use a product activation key on multiple platforms? A: No, product activation keys are platform-specific and can only be used on the platform they were purchased for.
→ You likely bought a used DVD. Keys are one-time use per EA account. Contact the seller for a refund. need for speed shift 2 unleashed product activation key
Once you have a legitimate key, follow these steps: Q: Can I use a product activation key on multiple platforms