Q: has anyone else received e mail stating they need testers for i phone 7 prize for answering new i phone 6

Those are all scams. Any actual prerelease iPhone testing is limited to Apple and possibly the wireless carriers.

(134822)

You can report phishing attempts to Apple by forwarding those emails to reportphishing@apple.com

http://www.apple.com/legal/more-resources/phishing/

Here is an article from Apple to help you identify phishing emails : Identifying fraudulent "phishing" email - Apple Support