I had a similar problem.

I switched one of my phone lines to ATT to receive a 7500 Hilton HHonor point bonus. I felt this was a pretty good deal since they usually offer only 3000 points. After waiting two months, points posted...only 3000. I called ATT who told me it was Hiltons fault. Called Hilton who told me it was ATT's responsibility. Called ATT again and told them to fix it or I'm switching again. The rep seemed new and got a supervisor for me who said they usually type problems like this into a computer but she was going to skip this step and submitt a hand written form that gets results faster. I should see the additional 4500 points within 2 weeks. I sure hope so...

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