I attached a screenshot of the bit in the email that mentioned this, because I wasn't sure if I could link to the online version of it.
It doesn't mention if it starts now but it does say ends 20 April.
From http://www.sanchurro.com/resources/terms-conditions
EASTER GIFT BOX OFFER TERMS AND CONDITIONS
* The free gift box of 4 chocolate pralines offer is available to ALL customers who spend $30 or more on retail in one transaction. Customers who spend $60+ on retail are entitled to 2x gift boxes. Customers who spend $90+ on retail are entitled to 3x gift boxes etc.
* Offer excludes menu item purchases.
* Free gift box of 4 chocolate pralines, valued at $8.95, cannot be exchanged for another product or redeemed for cash.
* Free gift box includes 4 chocolate pralines and excludes chocolate truffles.
* Not to be used in conjunction with any other offer or discount.
* Only one redemption per person per day.
* Offer available while stocks last.
* Offer ends on Sunday 20 April 2014.