Also, sometimes you get that message, and that is later followed by another message saying you have received points for that same purchase.
I don't know how they calculate the points value of each purchase. In the past I've been told I've received 43 points for a purchase of Rs 410, and just 15 for a purchase of 571. Go figure.
And they apply some equally mystifying logic to calculate the points-earning value of any purchase. For instance, for a recent purchase of about Rs 4800, the amount (on which points are calculated) shows as Rs 3711 in the email shop.jetprivilege sent me. How did they get that figure? Who knows. And I received a grand total of 197 miles for that spend of Rs 3711.
Seems about right, considering it's a 9W enterprise.