I also replied under the code shown in the Sunday newspaper insert but was credited with only 5000 TY Points. I called and the CSR said she would refer it to the proper personnel. I got a letter back saying that I was coded for only 5000 points, please provide a copy of the advertising offer. I mailed a copy to Citi in Jacksonville FL. I now have another letter saying "We are aware of the delay in the posting of the points for your offer. Please allow one to two billing cycles for your points to be applied to your account." So I'll wait til the next billing cycle date passes and see what happens.
I also see Citi has introduced some point "inflation". Gift cards for $25 used to be 3000 points, now 3500. Gift cards for $50 used to be 5000 points, now 6000. Gift cards for $100 still seem to be 10000 points.