I purchased (through the dashboard) 12+1 months of Gold subscription during a promotion which said there was a bonus for renewing and I would also get 800 microsoft points. Ive called xbox live support 2 times about this issue and was told the promotion did not exist , even though it was through the xbox dashboard. I did this back in October, 2010. No 800 points award as of yet. The other reward issue I have is that instead of getting 200 points for renewing a 12 month gold subscription. Under my rewards it said I only renewed for a 1 month gold subscription, even though I have been online for 3 or more years.
I have not received 800 microsoft points from the dashboard promotion and I haven't received the 200 point rewards promotion.