This is a great promotion in the 'battle for the home delivery' between AmazonFresh and Google Shopping Express.
AmazonFresh is offering $30 off your first AmazonFresh purchase. The offer is limited to the SF Bay Area but every citi credit card will work.
All items must be in one order and delivered to the same address. Also, a $50 minimum purchase is required.
All you need to do is add the promotional code CITIBANK at checkout.
If you live in the SF Bay Area, this is an excellent offer if you have a citi credit card.