There is no way that 28 nights only yielded 30k points

28 nights at a low rate of $100 per night yields 28k points
Plus 5 as a diamond equals 14k
Plus optional 5 equals 14k
Plus Hilton has a double promo or extra 1000 points running just about all this year equals another 28k
Plus 1000 per stay at Hilton equal up to 28k
Plus 6 points with a Hilton cc equals another 17k

I add that up to a possible 129k on a low rate of 100 bucks per night YMMV