Just noticed the "deal" was removed, because it was targeted. The post was really useful for me, as I'd never have checked without being prompted to do so by the post. I have the voucher emailed, and so does my wife.
To those who didn't get the emailed voucher, it might be worth logging in to your ebay account, and checking which email address is affiliated with your ebay account. I initially thought I'd missed out, then logged in and discovered I'd signed up to ebay with an old email account I hardly use anymore. Signed in to that and sure enough, there was the voucher. Of course, also check you "junkk"/"promotional emails" (etc.) in-boxes, as well as just the 'normal' one.
Also, my email was sent at 04:00AM today (24march2015), so to those who were saying "damn, I just bought something 45 minutes ago" etc., it might still be worth checking; you may have actually been emailed the voucher prior to purchasing.
Good luck, and big ups to the original deal poster, even though it was ultimately removed. Many have evidently benefited from this, cheers mate.
EDIT (06april2015): I just bought something from ebay using PayPal and applied the "02" version of the voucher, and it actually worked (I completed the purchase and a $10 discount was applied to the PayPal payment). So it seems the vouchers have finally been rendered effective/are working.
Thanks, just tried the same.