How do I change the Apple ID and password in an ipod
Please provide step by step on how to change the Apple ID and Password on an ipod touch
This is how you wipe a device to sell it, which removes the apple ID
What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support
That said, did you buy one that has an Apple ID already on it? If so. You bought a device that you can’t use and should take back to get your money back.