Duncanggggg on "[Plugin: PayPal for WooCommerce] CVC code issue? Payment error: 12-Declined"

Hey guys I am at at last step everything else is working account number is not throwing error expiration date is not throwing error but cvc (the three or four digit code on the back of the card will not work)

I tried entering fake one as it says here

http://stackoverflow.com/questions/18366990/what-is-the-cvc-number-for-paypal-dummy-credit-card-in-sandbox?answertab=oldest#tab-top

And THERE IS NO REAL CVV code in paypal sandbox account

:(

What should I do?

https://wordpress.org/plugins/paypal-for-woocommerce/