Possibly targeted, please confirm in comments. I'm fairly sure it's targeted as on my eBay Summary page there's a link to the offer with a code that definitely looks unique. Probably due to my once (and only once, ever) clicking the 'Join now' link to read what was on offer for the monthly subscription, so I'm forever flagged in their database as 'possibly interested'.
I received this in my eBay Messages. Similar to the $40 voucher for an annual subscription, except this is aimed at the monthly subscription model. Screenshot of the original message.
Minimum purchase must be $20 with the voucher and it has a short expiry date of only a week.
T&Cs of this promotion can be seen here.
I got the $40 deal sigh.