This Review Title is Old Oral-B great, this one not so much (Oral-B 4000) and the content is: I had an older oral b electric toothbrush (5000 model) that lasted me a good few years. The battery in it started dying after a few brushes and the toothbrush was looking old so I thought it was time to get a new one. I purchased the 4000 model because I didn't really need the timer of the 5000 model and it looked very similar. It's not as great though. I don't know if I just have a defective one or what but the &#34;brushing too hard&#34; red light is constantly going off when the tooth brush is on, even when it's not in my mouth!<br /><br />As to the rebate, I don't buy things just because there is a good deal going on but if I happen to find a deal for something I'm planning to buy, I will normally use it. I purchased this item which came in the Amazon Frustration-Free packaging. Sent in the rebate form, receipt, and the original UPC bar code (just like the rebate form showed), and I too got a letter stating they have not received the UPC code and to send it in..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.