Rakuten.com Rakuten.com , formerly Buy.com Offered 20x Super Points then did not honor them Internet

On May 6th, 2013 Rakuten.com (formerly buy.com) was offering a 20x Super Points promotion on ALL ORDERS.  I've had a buy.com account for many years but had not purchased from them in a long while but still received their emails.  I decided to give them a try again since they were offering the 20x promotion.  I purchased an expensive camera lens from them for $2099 and was sent an email that said "Congratulations, you just earned 41980 Rakuten Super Points on this order!".  My account was showing that I had 41980 Super Points pending.  On May 10th, I noticed my Super Points pending had been reduced to 25000 super points.  I called and spoke to a Rakuten.com representative.  The representative acknowledged the 20x offer and their acknowledgement email that stated I earned those points.  They said they would look into it.  Rakuten.com then sent me an email stating that I would only received 25000 Super points and to look at their "terms and condition".

During the entire online purchase transaction I was continuously affirmed that I was receiving the 41980 super points and felt confident that I would receive those points when I received my order acknowledgement stating that I earned 41980 Super Points.  As of May 17th, it still shows that I have only 25000 super points pending.  Rakuten.com should honor their promotions!  They should not put out a promotion that says "TREAT YOURSELF AND GET 20% BACK IN SUPER POINTS ON ALL ORDERS" and then fail to honor the points!