JUST WANTED TO KNOW WHEN MY PHONE WAS PURCHASED

This is a user-to-user technical support site operated by Apple, none of us would have the answer to that question. You might be able to go here Check Your Service and Support Coverage - Apple Support and find out. Or check your receipt.

There is no one to reply, because it is impossible for anyone here to know when you purchased your device. Check the receipt for your purchase date.