I got a flyer yesterday with the same link but different offer.
It was for double reward credits on my visa from July 22 to August 22 (only double credit on purchases that normally earn 1 credit per dollar not bonus categories).
Unfortunately it maxes out at 8K bonus credits but still a good deal since I have a lot of business expenses this month.
Also received an offer last month that if I put at least $5k on the card this year I will keep my Platinum status at Harrah's so great way to keep that as well since I don't gamble that much.
I wish they would have an offer where you could get Diamond status with Harrah's with a certain spend and I would use the card a lot.