A fellow abused Dell customer here just offering my experience in the hopes that it helps you... In order to obtain the 5% cashback from Dell Rewards (10% if you purchase using a Dell credit card) one has to click the 'claim your rewards' while viewing the items in your shopping cart, before checking out. Clearly a system designed so that you miss this step and become disqualified for the rewards. If you successfully found and clicked the 'claim your rewards button when viewing your shopping cart (and before checking out) you would have noticed a new items in your cart with the cost of 10¢ and a 10¢ deduction from one of your other items.  You also would have notice the option for free 2 day shipping (which can be overlooked as other offers for free shipping exist). Log into Dell.com and look at your order history and see if you have an order for something that cost just 10¢ submitted the same day that you placed your other order.  If it is not there then you did not select 'claim my rewards' prior to checkout and Dell is likely going to tell you to pound sand. Of course if this is what happened and you are still within the return period of your product you can arrange a return and then reorder. Hope this helps. ps. Here is a link to the FAQ for the Dell Advantage Rewards program.  Note under the heading "Basics" the question "How do I claim my Dell Advantage Rewards"... it articulate the need to "claim" rewards before checking out...  IT IS NOT AUTOMATIC, clearly a design to avoid having to pay rewards altogether.www.dell.com/.../faq 
After more than twenty separate calls, Facebook messaging and emails, I still have not received my 10% Dell Advantage Rewards. It is now over twenty days since my order. I need to have this fixed as soon as possible. Countless people make promises that they will fix this but they never do. I seriously regret having anything to do with this retailer but would like to receive what I am entitled to before I ditch Dell for good. Thanks.
Advantage Rewards