Email scam??

[zoomer]

Hi, I keep getting occasional emails offering a variety of offers. The lastest offers me a chance to win £1000 in vouchers for the store of my choice. At the bottom of the email are the following details:
*************************************
Please visit here to opt out of future e-mailings
PO Box 29502 65910, Las Vegas, NV 89126
*************************************
(The words 'visit here' appears to be a hyperlink).

Does anyone know if this is a scam/virus/phishing attempt, or is it genuine?
T.I.A.

[tenrec]

Do not visit here.
Just bin it.

[zoomer]

Thanks tenrec.

[dzug2]

Why would a genuine outfit in Las Vegas be offering you vouchers in ££ rather than $$?

Definitely dodgy